313131311332 has 24 divisors (see below), whose sum is σ = 629070987776. Its totient is φ = 133597340928.

The previous prime is 313131311303. The next prime is 313131311371. The reversal of 313131311332 is 233113131313.

It is a super-2 number, since 2×313131311332² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313131311297 and 313131311306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25068333 + ... + 25080820.

Almost surely, 2^313131311332 is an apocalyptic number.

It is an amenable number.

313131311332 is an abundant number, since it is smaller than the sum of its proper divisors (315939676444).

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

313131311332 is a wasteful number, since it uses less digits than its factorization.

313131311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50149387 (or 50149385 counting only the distinct ones).

The product of its digits is 1458, while the sum is 25.

Adding to 313131311332 its reverse (233113131313), we get a palindrome (546244442645).

The spelling of 313131311332 in words is "three hundred thirteen billion, one hundred thirty-one million, three hundred eleven thousand, three hundred thirty-two".