231515014000 has 80 divisors (see below), whose sum is σ = 559920475296. Its totient is φ = 92586624000.

The previous prime is 231515013991. The next prime is 231515014001. The reversal of 231515014000 is 410515132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231515014001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13085160 + ... + 13102840.

Almost surely, 2^231515014000 is an apocalyptic number.

231515014000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231515014000 is an abundant number, since it is smaller than the sum of its proper divisors (328405461296).

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

231515014000 is a wasteful number, since it uses less digits than its factorization.

231515014000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24251 (or 24235 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 231515014000 its reverse (410515132), we get a palindrome (231925529132).

The spelling of 231515014000 in words is "two hundred thirty-one billion, five hundred fifteen million, fourteen thousand".