12313981600 has 36 divisors (see below), whose sum is σ = 30061509534. Its totient is φ = 4925592320.

The previous prime is 12313981591. The next prime is 12313981601. The reversal of 12313981600 is 618931321.

It can be written as a sum of positive squares in 3 ways, for example, as 9019680784 + 3294300816 = 94972^2 + 57396^2 .

It is not an unprimeable number, because it can be changed into a prime (12313981601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7695439 + ... + 7697038.

Almost surely, 2^12313981600 is an apocalyptic number.

12313981600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313981600 is an abundant number, since it is smaller than the sum of its proper divisors (17747527934).

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

12313981600 is a wasteful number, since it uses less digits than its factorization.

12313981600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392497 (or 15392484 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 12313981600 in words is "twelve billion, three hundred thirteen million, nine hundred eighty-one thousand, six hundred".