231317055 has 24 divisors (see below), whose sum is σ = 401401728. Its totient is φ = 123230016.

The previous prime is 231316999. The next prime is 231317101. The reversal of 231317055 is 550713132.

It is not a de Polignac number, because 231317055 - 2⁶ = 231316991 is a prime.

It is a super-4 number, since 4×231317055⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46834 + ... + 51536.

It is an arithmetic number, because the mean of its divisors is an integer number (16725072).

Almost surely, 2^231317055 is an apocalyptic number.

231317055 is a deficient number, since it is larger than the sum of its proper divisors (170084673).

231317055 is a wasteful number, since it uses less digits than its factorization.

231317055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807 (or 5804 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 231317055 is about 15209.1109207606. The cubic root of 231317055 is about 613.8598347766.

The spelling of 231317055 in words is "two hundred thirty-one million, three hundred seventeen thousand, fifty-five".