231320864888 has 8 divisors (see below), whose sum is σ = 433726621680. Its totient is φ = 115660432440.

The previous prime is 231320864809. The next prime is 231320864903. The reversal of 231320864888 is 888468023132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14457554048 + ... + 14457554063.

It is an arithmetic number, because the mean of its divisors is an integer number (54215827710).

Almost surely, 2^231320864888 is an apocalyptic number.

It is an amenable number.

231320864888 is a deficient number, since it is larger than the sum of its proper divisors (202405756792).

231320864888 is a wasteful number, since it uses less digits than its factorization.

231320864888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28915108117 (or 28915108113 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 53.

The spelling of 231320864888 in words is "two hundred thirty-one billion, three hundred twenty million, eight hundred sixty-four thousand, eight hundred eighty-eight".