31013312122 has 16 divisors (see below), whose sum is σ = 50947555680. Its totient is φ = 14071228272.

The previous prime is 31013312111. The next prime is 31013312159. The reversal of 31013312122 is 22121331013.

It is a self number, because there is not a number n which added to its sum of digits gives 31013312122.

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, 10107108 + ... + 10110175.

It is an arithmetic number, because the mean of its divisors is an integer number (3184222230).

Almost surely, 2^31013312122 is an apocalyptic number.

31013312122 is a deficient number, since it is larger than the sum of its proper divisors (19934243558).

31013312122 is a wasteful number, since it uses less digits than its factorization.

31013312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20217357.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31013312122 its reverse (22121331013), we get a palindrome (53134643135).

The spelling of 31013312122 in words is "thirty-one billion, thirteen million, three hundred twelve thousand, one hundred twenty-two".