313130021332 has 12 divisors (see below), whose sum is σ = 548272003636. Its totient is φ = 156480877440.

The previous prime is 313130021291. The next prime is 313130021371. The reversal of 313130021332 is 233120031313.

It can be written as a sum of positive squares in 2 ways, for example, as 5577699856 + 307552321476 = 74684^2 + 554574^2 .

It is a congruent number.

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, 21024933 + ... + 21039820.

Almost surely, 2^313130021332 is an apocalyptic number.

It is an amenable number.

313130021332 is a deficient number, since it is larger than the sum of its proper divisors (235141982304).

313130021332 is a wasteful number, since it uses less digits than its factorization.

313130021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42066618 (or 42066616 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 313130021332 its reverse (233120031313), we get a palindrome (546250052645).

The spelling of 313130021332 in words is "three hundred thirteen billion, one hundred thirty million, twenty-one thousand, three hundred thirty-two".