12318865900 has 36 divisors (see below), whose sum is σ = 29162117880. Its totient is φ = 4479587200.

The previous prime is 12318865831. The next prime is 12318865919. The reversal of 12318865900 is 956881321.

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, 5598385 + ... + 5600584.

It is an arithmetic number, because the mean of its divisors is an integer number (810058830).

Almost surely, 2^12318865900 is an apocalyptic number.

12318865900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12318865900 is an abundant number, since it is smaller than the sum of its proper divisors (16843251980).

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

12318865900 is a wasteful number, since it uses less digits than its factorization.

12318865900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11198994 (or 11198987 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 12318865900 in words is "twelve billion, three hundred eighteen million, eight hundred sixty-five thousand, nine hundred".