31013110113011 has 24 divisors (see below), whose sum is σ = 35823388028064. Its totient is φ = 26681928606720.

The previous prime is 31013110112917. The next prime is 31013110113047. The reversal of 31013110113011 is 11031101131013.

It is not a de Polignac number, because 31013110113011 - 2¹⁸ = 31013109850867 is a prime.

It is a super-2 number, since 2×31013110113011² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (31013110113511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39684650 + ... + 40458591.

It is an arithmetic number, because the mean of its divisors is an integer number (1492641167836).

Almost surely, 2^{31013110113011} is an apocalyptic number.

31013110113011 is a deficient number, since it is larger than the sum of its proper divisors (4810277915053).

31013110113011 is a wasteful number, since it uses less digits than its factorization.

31013110113011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80143391 (or 80143374 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 31013110113011 its reverse (11031101131013), we get a palindrome (42044211244024).

The spelling of 31013110113011 in words is "thirty-one trillion, thirteen billion, one hundred ten million, one hundred thirteen thousand, eleven".