313021231012 has 18 divisors (see below), whose sum is σ = 637221792102. Its totient is φ = 134151956064.

The previous prime is 313021231001. The next prime is 313021231049. The reversal of 313021231012 is 210132120313.

It can be written as a sum of positive squares in only one way, i.e., 185981737536 + 127039493476 = 431256^2 + 356426^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 798523353 + ... + 798523744.

Almost surely, 2^313021231012 is an apocalyptic number.

It is an amenable number.

313021231012 is an abundant number, since it is smaller than the sum of its proper divisors (324200561090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313021231012 is a wasteful number, since it uses less digits than its factorization.

313021231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597047115 (or 1597047106 counting only the distinct ones).

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

Adding to 313021231012 its reverse (210132120313), we get a palindrome (523153351325).

The spelling of 313021231012 in words is "three hundred thirteen billion, twenty-one million, two hundred thirty-one thousand, twelve".