231447215328 has 96 divisors (see below), whose sum is σ = 713107713024. Its totient is φ = 64340531712.

The previous prime is 231447215299. The next prime is 231447215333. The reversal of 231447215328 is 823512744132.

231447215328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 231447215328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4629400 + ... + 4679127.

It is an arithmetic number, because the mean of its divisors is an integer number (7428205344).

Almost surely, 2^231447215328 is an apocalyptic number.

231447215328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231447215328 is an abundant number, since it is smaller than the sum of its proper divisors (481660497696).

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

231447215328 is a wasteful number, since it uses less digits than its factorization.

231447215328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9308584 (or 9308576 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The spelling of 231447215328 in words is "two hundred thirty-one billion, four hundred forty-seven million, two hundred fifteen thousand, three hundred twenty-eight".