313212031012 has 12 divisors (see below), whose sum is σ = 548125500636. Its totient is φ = 156604745120.

The previous prime is 313212030997. The next prime is 313212031037. The reversal of 313212031012 is 210130212313.

It can be written as a sum of positive squares in 2 ways, for example, as 300385109476 + 12826921536 = 548074^2 + 113256^2 .

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, 435618 + ... + 903430.

It is an arithmetic number, because the mean of its divisors is an integer number (45677125053).

Almost surely, 2^313212031012 is an apocalyptic number.

It is an amenable number.

313212031012 is a deficient number, since it is larger than the sum of its proper divisors (234913469624).

313212031012 is a wasteful number, since it uses less digits than its factorization.

313212031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635198 (or 635196 counting only the distinct ones).

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

Adding to 313212031012 its reverse (210130212313), we get a palindrome (523342243325).

The spelling of 313212031012 in words is "three hundred thirteen billion, two hundred twelve million, thirty-one thousand, twelve".