1112120731 has 2 divisors, whose sum is σ = 1112120732. Its totient is φ = 1112120730.

The previous prime is 1112120719. The next prime is 1112120741. The reversal of 1112120731 is 1370212111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1112120731 - 2²⁵ = 1078566299 is a prime.

It is a super-2 number, since 2×1112120731² = 2473625040639948722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112120699 and 1112120708.

It is not a weakly prime, because it can be changed into another prime (1112120741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556060365 + 556060366.

It is an arithmetic number, because the mean of its divisors is an integer number (556060366).

Almost surely, 2^1112120731 is an apocalyptic number.

1112120731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112120731 is an equidigital number, since it uses as much as digits as its factorization.

1112120731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 1112120731 is about 33348.4741929822. The cubic root of 1112120731 is about 1036.0577860539.

Adding to 1112120731 its reverse (1370212111), we get a palindrome (2482332842).

The spelling of 1112120731 in words is "one billion, one hundred twelve million, one hundred twenty thousand, seven hundred thirty-one".