113012012031 has 16 divisors (see below), whose sum is σ = 151463300448. Its totient is φ = 74951884800.

The previous prime is 113012011993. The next prime is 113012012041. The reversal of 113012012031 is 130210210311.

It is a happy number.

It is not a de Polignac number, because 113012012031 - 2⁶ = 113012011967 is a prime.

It is a super-2 number, since 2×113012012031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113012012031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113012012041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426591 + ... + 638751.

It is an arithmetic number, because the mean of its divisors is an integer number (9466456278).

Almost surely, 2^113012012031 is an apocalyptic number.

113012012031 is a deficient number, since it is larger than the sum of its proper divisors (38451288417).

113012012031 is a wasteful number, since it uses less digits than its factorization.

113012012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213082.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 113012012031 its reverse (130210210311), we get a palindrome (243222222342).

The spelling of 113012012031 in words is "one hundred thirteen billion, twelve million, twelve thousand, thirty-one".