232131312331 has 2 divisors, whose sum is σ = 232131312332. Its totient is φ = 232131312330.

The previous prime is 232131312311. The next prime is 232131312341. The reversal of 232131312331 is 133213131232.

232131312331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232131312331 - 2²⁷ = 231997094603 is a prime.

It is a super-2 number, since 2×232131312331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232131312296 and 232131312305.

It is not a weakly prime, because it can be changed into another prime (232131312311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116065656165 + 116065656166.

It is an arithmetic number, because the mean of its divisors is an integer number (116065656166).

Almost surely, 2^232131312331 is an apocalyptic number.

232131312331 is a deficient number, since it is larger than the sum of its proper divisors (1).

232131312331 is an equidigital number, since it uses as much as digits as its factorization.

232131312331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

Adding to 232131312331 its reverse (133213131232), we get a palindrome (365344443563).

The spelling of 232131312331 in words is "two hundred thirty-two billion, one hundred thirty-one million, three hundred twelve thousand, three hundred thirty-one".