313131313132 has 144 divisors (see below), whose sum is σ = 644460544000. Its totient is φ = 132635543040.

The previous prime is 313131313097. The next prime is 313131313171. The reversal of 313131313132 is 231313131313.

It is a junction number, because it is equal to n+sod(n) for n = 313131313097 and 313131313106.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244824469 + ... + 244825747.

Almost surely, 2^313131313132 is an apocalyptic number.

It is an amenable number.

313131313132 is an abundant number, since it is smaller than the sum of its proper divisors (331329230868).

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

313131313132 is a wasteful number, since it uses less digits than its factorization.

313131313132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740 (or 1727 counting only the distinct ones).

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

Adding to 313131313132 its reverse (231313131313), we get a palindrome (544444444445).

It can be divided in two parts, 31313131313 and 2, that multiplied together give a palindrome (62626262626).

The spelling of 313131313132 in words is "three hundred thirteen billion, one hundred thirty-one million, three hundred thirteen thousand, one hundred thirty-two".