12313031100 has 36 divisors (see below), whose sum is σ = 35625704184. Its totient is φ = 3283474880.

The previous prime is 12313031089. The next prime is 12313031113. The reversal of 12313031100 is 113031321.

It is a super-2 number, since 2×12313031100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12313031100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20521419 + ... + 20522018.

It is an arithmetic number, because the mean of its divisors is an integer number (989602894).

Almost surely, 2^12313031100 is an apocalyptic number.

12313031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313031100 is an abundant number, since it is smaller than the sum of its proper divisors (23312673084).

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

12313031100 is a wasteful number, since it uses less digits than its factorization.

12313031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41043454 (or 41043447 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 12313031100 its reverse (113031321), we get a palindrome (12426062421).

The spelling of 12313031100 in words is "twelve billion, three hundred thirteen million, thirty-one thousand, one hundred".