31313121096 has 32 divisors (see below), whose sum is σ = 78287335200. Its totient is φ = 10437102720.

The previous prime is 31313121079. The next prime is 31313121097. The reversal of 31313121096 is 69012131313.

It is not an unprimeable number, because it can be changed into a prime (31313121097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617140 + ... + 665948.

It is an arithmetic number, because the mean of its divisors is an integer number (2446479225).

Almost surely, 2^31313121096 is an apocalyptic number.

It is an amenable number.

31313121096 is an abundant number, since it is smaller than the sum of its proper divisors (46974214104).

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

31313121096 is a wasteful number, since it uses less digits than its factorization.

31313121096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75549 (or 75545 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The spelling of 31313121096 in words is "thirty-one billion, three hundred thirteen million, one hundred twenty-one thousand, ninety-six".