31012010312 has 16 divisors (see below), whose sum is σ = 58175873340. Its totient is φ = 15498444096.

The previous prime is 31012010291. The next prime is 31012010369. The reversal of 31012010312 is 21301021013.

It can be written as a sum of positive squares in 2 ways, for example, as 30114049156 + 897961156 = 173534^2 + 29966^2 .

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, 927683 + ... + 960530.

Almost surely, 2^31012010312 is an apocalyptic number.

It is an amenable number.

31012010312 is a deficient number, since it is larger than the sum of its proper divisors (27163863028).

31012010312 is a wasteful number, since it uses less digits than its factorization.

31012010312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890272 (or 1890268 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31012010312 its reverse (21301021013), we get a palindrome (52313031325).

The spelling of 31012010312 in words is "thirty-one billion, twelve million, ten thousand, three hundred twelve".