31115520214 has 16 divisors (see below), whose sum is σ = 46786178880. Its totient is φ = 15520173120.

The previous prime is 31115520203. The next prime is 31115520277. The reversal of 31115520214 is 41202551113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457602 + ... + 1478794.

It is an arithmetic number, because the mean of its divisors is an integer number (2924136180).

Almost surely, 2^31115520214 is an apocalyptic number.

31115520214 is a deficient number, since it is larger than the sum of its proper divisors (15670658666).

31115520214 is a wasteful number, since it uses less digits than its factorization.

31115520214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22935.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 31115520214 in words is "thirty-one billion, one hundred fifteen million, five hundred twenty thousand, two hundred fourteen".