31312364210 has 16 divisors (see below), whose sum is σ = 56364275736. Its totient is φ = 12524496768.

The previous prime is 31312364203. The next prime is 31312364219. The reversal of 31312364210 is 1246321313.

It is a Cunningham number, because it is equal to 176953²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 13921876081 + 17390488129 = 117991^2 + 131873^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31312364210.

It is not an unprimeable number, because it can be changed into a prime (31312364219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488972 + ... + 549288.

Almost surely, 2^31312364210 is an apocalyptic number.

31312364210 is a deficient number, since it is larger than the sum of its proper divisors (25051911526).

31312364210 is a wasteful number, since it uses less digits than its factorization.

31312364210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112237.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31312364210 its reverse (1246321313), we get a palindrome (32558685523).

The spelling of 31312364210 in words is "thirty-one billion, three hundred twelve million, three hundred sixty-four thousand, two hundred ten".