1113319931 has 2 divisors, whose sum is σ = 1113319932. Its totient is φ = 1113319930.

The previous prime is 1113319927. The next prime is 1113320041. The reversal of 1113319931 is 1399133111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113319931 - 2² = 1113319927 is a prime.

It is a super-2 number, since 2×1113319931² = 2478962537523689522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1113319331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556659965 + 556659966.

It is an arithmetic number, because the mean of its divisors is an integer number (556659966).

Almost surely, 2^1113319931 is an apocalyptic number.

1113319931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113319931 is an equidigital number, since it uses as much as digits as its factorization.

1113319931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2187, while the sum is 32.

The square root of 1113319931 is about 33366.4491817754. The cubic root of 1113319931 is about 1036.4300460538.

The spelling of 1113319931 in words is "one billion, one hundred thirteen million, three hundred nineteen thousand, nine hundred thirty-one".