1113818931 has 36 divisors (see below), whose sum is σ = 1761009432. Its totient is φ = 703409184.

The previous prime is 1113818897. The next prime is 1113818963. The reversal of 1113818931 is 1398183111.

It is not a de Polignac number, because 1113818931 - 2¹⁰ = 1113817907 is a prime.

It is a super-2 number, since 2×1113818931² = 2481185222107965522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1113818231) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 81375 + ... + 94071.

Almost surely, 2^1113818931 is an apocalyptic number.

1113818931 is a deficient number, since it is larger than the sum of its proper divisors (647190501).

1113818931 is an equidigital number, since it uses as much as digits as its factorization.

1113818931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12750 (or 12719 counting only the distinct ones).

The product of its digits is 5184, while the sum is 36.

The square root of 1113818931 is about 33373.9259153010. The cubic root of 1113818931 is about 1036.5848686793.

The spelling of 1113818931 in words is "one billion, one hundred thirteen million, eight hundred eighteen thousand, nine hundred thirty-one".