113853917931 has 16 divisors (see below), whose sum is σ = 166162594080. Its totient is φ = 68915358720.

The previous prime is 113853917909. The next prime is 113853917941. The reversal of 113853917931 is 139719358311.

It is a happy number.

It is not a de Polignac number, because 113853917931 - 2⁶ = 113853917867 is a prime.

It is a super-2 number, since 2×113853917931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113853917941) 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 in 15 ways as a sum of consecutive naturals, for example, 23926566 + ... + 23931323.

It is an arithmetic number, because the mean of its divisors is an integer number (10385162130).

Almost surely, 2^113853917931 is an apocalyptic number.

113853917931 is a deficient number, since it is larger than the sum of its proper divisors (52308676149).

113853917931 is a wasteful number, since it uses less digits than its factorization.

113853917931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47857966.

The product of its digits is 612360, while the sum is 51.

The spelling of 113853917931 in words is "one hundred thirteen billion, eight hundred fifty-three million, nine hundred seventeen thousand, nine hundred thirty-one".