31312111000113 has 64 divisors (see below), whose sum is σ = 48358917734400. Its totient is φ = 20009064942720.

The previous prime is 31312111000099. The next prime is 31312111000139. The reversal of 31312111000113 is 31100011121313.

It is not a de Polignac number, because 31312111000113 - 2¹⁷ = 31312110869041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31312111000193) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13399498 + ... + 15561836.

It is an arithmetic number, because the mean of its divisors is an integer number (755608089600).

Almost surely, 2^{31312111000113} is an apocalyptic number.

It is an amenable number.

31312111000113 is a deficient number, since it is larger than the sum of its proper divisors (17046806734287).

31312111000113 is a wasteful number, since it uses less digits than its factorization.

31312111000113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162619 (or 2162613 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 31312111000113 its reverse (31100011121313), we get a palindrome (62412122121426).

The spelling of 31312111000113 in words is "thirty-one trillion, three hundred twelve billion, one hundred eleven million, one hundred thirteen", and thus it is an aban number.