232331431 has 2 divisors, whose sum is σ = 232331432. Its totient is φ = 232331430.

The previous prime is 232331413. The next prime is 232331443. The reversal of 232331431 is 134133232.

Together with previous prime (232331413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232331431 - 2¹⁵ = 232298663 is a prime.

It is a super-2 number, since 2×232331431² = 107955787661015522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232331831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116165715 + 116165716.

It is an arithmetic number, because the mean of its divisors is an integer number (116165716).

Almost surely, 2^232331431 is an apocalyptic number.

232331431 is a deficient number, since it is larger than the sum of its proper divisors (1).

232331431 is an equidigital number, since it uses as much as digits as its factorization.

232331431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 22.

The square root of 232331431 is about 15242.4220844326. The cubic root of 232331431 is about 614.7558296580.

Adding to 232331431 its reverse (134133232), we get a palindrome (366464663).

The spelling of 232331431 in words is "two hundred thirty-two million, three hundred thirty-one thousand, four hundred thirty-one".