1121244331 has 2 divisors, whose sum is σ = 1121244332. Its totient is φ = 1121244330.

The previous prime is 1121244317. The next prime is 1121244349. The reversal of 1121244331 is 1334421211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121244331 is a prime.

It is a super-2 number, since 2×1121244331² = 2514377699599275122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121244391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560622165 + 560622166.

It is an arithmetic number, because the mean of its divisors is an integer number (560622166).

Almost surely, 2^1121244331 is an apocalyptic number.

1121244331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121244331 is an equidigital number, since it uses as much as digits as its factorization.

1121244331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 1121244331 is about 33484.9866507365. The cubic root of 1121244331 is about 1038.8832721584.

Adding to 1121244331 its reverse (1334421211), we get a palindrome (2455665542).

The spelling of 1121244331 in words is "one billion, one hundred twenty-one million, two hundred forty-four thousand, three hundred thirty-one".