31012211204 has 12 divisors (see below), whose sum is σ = 58446090444. Its totient is φ = 14313328224.

The previous prime is 31012211173. The next prime is 31012211267. The reversal of 31012211204 is 40211221013.

It can be written as a sum of positive squares in 2 ways, for example, as 6585647104 + 24426564100 = 81152^2 + 156290^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298194287 + ... + 298194390.

It is an arithmetic number, because the mean of its divisors is an integer number (4870507537).

Almost surely, 2^31012211204 is an apocalyptic number.

It is an amenable number.

31012211204 is a deficient number, since it is larger than the sum of its proper divisors (27433879240).

31012211204 is a wasteful number, since it uses less digits than its factorization.

31012211204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596388694 (or 596388692 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31012211204 its reverse (40211221013), we get a palindrome (71223432217).

The spelling of 31012211204 in words is "thirty-one billion, twelve million, two hundred eleven thousand, two hundred four".