Former President Donald Trump and New York Attorney General Letitia James, in separate media appearances, addressed the ruling Friday evening, trading barbs while reacting to the judgment.

Speaking from his Mar-a-Lago estate in Florida, Trump said he had to pay a fine for "having built a perfect company." Accusing both James and Judge Arthur Engoron of being politically motivated, Trump denied committing any fraud and said he plans to appeal.

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Trump responds to ruling: 'A crooked New State judge just ruled I need to pay a fine'

Meanwhile, in New York, James lauded the ruling as a victory for all Americans and the principles of equal justice under the law -- saying "former presidents are no exception."

"The scale and scope of Donald Trump's fraud is staggering -- and so, too, is his ego and his belief that the rules don't apply to him," she said.

James also heralded Judge Engoron's penalties as effective remedies to "ensure this fraud cannot continue."

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Letitia James delivers remarks after Trump ruling

Based on Friday's decision, former President Trump and his co-defendants will likely owe $463.9 million based on their initial fine and the prejudgment interest imposed by the court, according to a representative for the New York attorney general.

Trump himself will likely owe $453.5 million, between his $354.86 million fine and $98.6 million in interest.

The amount of interest owed by the defendants is set to increase every day they do not pay the fines.

New York Attorney General Letitia James, whose office brought the civil fraud case against Donald Trump, described the ruling as a "tremendous victory for this state, this nation, and for everyone who believes that we all must play by the same rules -- even former presidents."

“When powerful people cheat to get better loans, it comes at the expense of honest and hardworking people," James said in a statement. "Everyday Americans cannot lie to a bank to get a mortgage to buy a home, and if they did, our government would throw the book at them. There simply cannot be different rules for different people."

The former president is "finally facing accountability for his lying, cheating, and staggering fraud," she said.

In addition to the fines imposed on Donald Trump and his co-defendants, the judge's decision leaves the Trump Organization in a constrained position to continue operating their New York-based businesses.

While Judge Engoron backtracked on his September summary judgment ruling -- vacating the part of his order that canceled their business certificates -- Donald Trump and his sons are temporarily unable to lead their namesake company. Trump faces a three-year ban on serving as the leader of a New York company, and his sons face two-year bans.

An independent monitor will continue to oversee the company's finances for at least three years, and the company needs to install a director of compliance.

Regarding the combined $364 million owed by the defendants, experts who ABC News spoke with believe it is unlikely any of them foot the bill immediately; instead, they can cover the fine with a bond while they appeal.

Ivanka Trump must appear to testify at her father’s fraud trial, Judge Arthur Engoron decided from the bench Friday morning.

“I want to see her in person. That is how we prefer testimony,” Engoron said after denying Ivanka Trump’s motion to quash the trial subpoenas she was served.

While Ivanka Trump was not in attendance at Friday's hearing, her lawyer Bennet Moskowitz argued that the state’s justification for bringing Ivanka to the courtroom “falls on its face.”

Characterizing the state’s argument as “a bridge too far,” Moskowitz reiterated that Ivanka neither lives nor has done business in New York since 2017.

State attorney Kevin Wallace defended the subpoenas by arguing Ivanka Trump was a former Trump Organization executive who was the main contact with lenders for Trump’s Washington D.C. Old Post Office hotel. Wallace added that Ivanka Trump still owns properties in New York and operates business here.

Ruling from the bench after a short break, Engoron found that the state presented sufficient evidence to prove that Ivanka does business in New York.

“Ms. Trump owns property in New York and has done business in New York,” he said.

Engoron added that her testimony should not be scheduled before next Wednesday to allow her lawyers to appeal his ruling.

“A trial is a search for the truth, and the law is entitled to every person’s evidence,” Engoron said.