The person who bought the winning Mega Millions ticket in Illinois has not claimed their prize.

Nobody has claimed the second-largest jackpot in the 20-year history of the game. It is topped only by the $1.537 billion ticket in South Carolina in 2018.

According to the Mega Millions website, the rules for claiming a prize vary from state to state.

The period for claiming prizes typically ranges from 90 days to one year.

Illinois Lottery states that winners may have up to a year to come forward and claim the $1.34 billion prize.

An anonymous winner of more than $250,000 has not revealed their identity, so we may never know who will become a billionaire.

If you're the lucky prize winner, you must decide whether to take the lump sum or deposit your winnings into an annuity account.

The winning numbers in the lottery were drawn on July 29. So they now only have 33 days left to decide.

If a jackpot prize goes unclaimed, the money contributed to that game will be returned to the states.

The unclaimed lottery money stays in the state's lottery fund—Illinois School District to Spend a Quarter of $1.34 Billion Mega Millions Jackpot.