231514515543452 has 6 divisors (see below), whose sum is σ = 405150402201048. Its totient is φ = 115757257771724.

The previous prime is 231514515543431. The next prime is 231514515543461. The reversal of 231514515543452 is 254345515415132.

It is a self number, because there is not a number n which added to its sum of digits gives 231514515543452.

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, 28939314442928 + ... + 28939314442935.

It is an arithmetic number, because the mean of its divisors is an integer number (67525067033508).

Almost surely, 2^{231514515543452} is an apocalyptic number.

It is an amenable number.

231514515543452 is a deficient number, since it is larger than the sum of its proper divisors (173635886657596).

231514515543452 is a wasteful number, since it uses less digits than its factorization.

231514515543452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57878628885867 (or 57878628885865 counting only the distinct ones).

The product of its digits is 7200000, while the sum is 50.

The spelling of 231514515543452 in words is "two hundred thirty-one trillion, five hundred fourteen billion, five hundred fifteen million, five hundred forty-three thousand, four hundred fifty-two".