231513150555 has 12 divisors (see below), whose sum is σ = 401289461040. Its totient is φ = 123473680272.

The previous prime is 231513150541. The next prime is 231513150563. The reversal of 231513150555 is 555051315132.

231513150555 is a `hidden beast` number, since 2 + 3 + 1 + 51 + 3 + 1 + 50 + 555 = 666.

It is not a de Polignac number, because 231513150555 - 2¹⁰ = 231513149531 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2572368295 + ... + 2572368384.

It is an arithmetic number, because the mean of its divisors is an integer number (33440788420).

Almost surely, 2^231513150555 is an apocalyptic number.

231513150555 is a deficient number, since it is larger than the sum of its proper divisors (169776310485).

231513150555 is a wasteful number, since it uses less digits than its factorization.

231513150555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144736690 (or 5144736687 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

Adding to 231513150555 its reverse (555051315132), we get a palindrome (786564465687).

The spelling of 231513150555 in words is "two hundred thirty-one billion, five hundred thirteen million, one hundred fifty thousand, five hundred fifty-five".