231513454510425 has 72 divisors (see below), whose sum is σ = 444852758226240. Its totient is φ = 119216123611200.

The previous prime is 231513454510397. The next prime is 231513454510439. The reversal of 231513454510425 is 524015454315132.

231513454510425 is a `hidden beast` number, since 2 + 3 + 1 + 51 + 3 + 4 + 545 + 10 + 42 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-231513454510425 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 656879181 + ... + 657231530.

It is an arithmetic number, because the mean of its divisors is an integer number (6178510530920).

Almost surely, 2^{231513454510425} is an apocalyptic number.

231513454510425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231513454510425 is a deficient number, since it is larger than the sum of its proper divisors (213339303715815).

231513454510425 is a wasteful number, since it uses less digits than its factorization.

231513454510425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314110765 (or 1314110748 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 231513454510425 in words is "two hundred thirty-one trillion, five hundred thirteen billion, four hundred fifty-four million, five hundred ten thousand, four hundred twenty-five".