232312131 has 24 divisors (see below), whose sum is σ = 349090560. Its totient is φ = 154385352.

The previous prime is 232312111. The next prime is 232312147. The reversal of 232312131 is 131213232.

It is not a de Polignac number, because 232312131 - 2⁵ = 232312099 is a prime.

It is a super-2 number, since 2×232312131² = 107937852419522322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (232312111) 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, 85906 + ... + 88568.

It is an arithmetic number, because the mean of its divisors is an integer number (14545440).

Almost surely, 2^232312131 is an apocalyptic number.

232312131 is a deficient number, since it is larger than the sum of its proper divisors (116778429).

232312131 is an equidigital number, since it uses as much as digits as its factorization.

232312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037 (or 3025 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 232312131 is about 15241.7889698027. The cubic root of 232312131 is about 614.7388063966.

Adding to 232312131 its reverse (131213232), we get a palindrome (363525363).

The spelling of 232312131 in words is "two hundred thirty-two million, three hundred twelve thousand, one hundred thirty-one".