313131011000 has 64 divisors (see below), whose sum is σ = 732962412000. Its totient is φ = 125212089600.

The previous prime is 313131010987. The next prime is 313131011023. The reversal of 313131011000 is 110131313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3160211 + ... + 3257789.

Almost surely, 2^313131011000 is an apocalyptic number.

It is an amenable number.

313131011000 is an abundant number, since it is smaller than the sum of its proper divisors (419831401000).

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

313131011000 is a wasteful number, since it uses less digits than its factorization.

313131011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100809 (or 100795 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 313131011000 its reverse (110131313), we get a palindrome (313241142313).

The spelling of 313131011000 in words is "three hundred thirteen billion, one hundred thirty-one million, eleven thousand".