231513523544125 has 32 divisors (see below), whose sum is σ = 298118324754432. Its totient is φ = 179401398105600.

The previous prime is 231513523544081. The next prime is 231513523544131. The reversal of 231513523544125 is 521445325315132.

231513523544125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231513523544125 - 2¹⁹ = 231513523019837 is a prime.

It is a super-2 number, since 2×231513523544125² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202556709 + ... + 203696458.

It is an arithmetic number, because the mean of its divisors is an integer number (9316197648576).

Almost surely, 2^{231513523544125} is an apocalyptic number.

231513523544125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231513523544125 is a deficient number, since it is larger than the sum of its proper divisors (66604801210307).

231513523544125 is an equidigital number, since it uses as much as digits as its factorization.

231513523544125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406253326 (or 406253316 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

Adding to 231513523544125 its reverse (521445325315132), we get a palindrome (752958848859257).

The spelling of 231513523544125 in words is "two hundred thirty-one trillion, five hundred thirteen billion, five hundred twenty-three million, five hundred forty-four thousand, one hundred twenty-five".