231303124431 has 24 divisors (see below), whose sum is σ = 361284490944. Its totient is φ = 142043466240.

The previous prime is 231303124309. The next prime is 231303124433. The reversal of 231303124431 is 134421303132.

It is a happy number.

231303124431 is a `hidden beast` number, since 2 + 313 + 0 + 312 + 4 + 4 + 31 = 666.

It is not a de Polignac number, because 231303124431 - 2³⁵ = 196943386063 is a prime.

It is a super-2 number, since 2×231303124431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231303124395 and 231303124404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231303124433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16075630 + ... + 16090011.

It is an arithmetic number, because the mean of its divisors is an integer number (15053520456).

Almost surely, 2^231303124431 is an apocalyptic number.

231303124431 is a deficient number, since it is larger than the sum of its proper divisors (129981366513).

231303124431 is a wasteful number, since it uses less digits than its factorization.

231303124431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32165711 (or 32165708 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 231303124431 its reverse (134421303132), we get a palindrome (365724427563).

The spelling of 231303124431 in words is "two hundred thirty-one billion, three hundred three million, one hundred twenty-four thousand, four hundred thirty-one".