12315863900 has 18 divisors (see below), whose sum is σ = 26725424880. Its totient is φ = 4926345520.

The previous prime is 12315863891. The next prime is 12315863939. The reversal of 12315863900 is 936851321.

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 5 ways as a sum of consecutive naturals, for example, 61579220 + ... + 61579419.

Almost surely, 2^12315863900 is an apocalyptic number.

12315863900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12315863900 is an abundant number, since it is smaller than the sum of its proper divisors (14409560980).

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

12315863900 is a wasteful number, since it uses less digits than its factorization.

12315863900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123158653 (or 123158646 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 12315863900 in words is "twelve billion, three hundred fifteen million, eight hundred sixty-three thousand, nine hundred".