232023391 has 2 divisors, whose sum is σ = 232023392. Its totient is φ = 232023390.

The previous prime is 232023377. The next prime is 232023397. The reversal of 232023391 is 193320232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232023391 - 2⁵ = 232023359 is a prime.

It is a super-2 number, since 2×232023391² = 107669707942277762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232023397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116011695 + 116011696.

It is an arithmetic number, because the mean of its divisors is an integer number (116011696).

Almost surely, 2^232023391 is an apocalyptic number.

232023391 is a deficient number, since it is larger than the sum of its proper divisors (1).

232023391 is an equidigital number, since it uses as much as digits as its factorization.

232023391 is an odious number, because the sum of its binary digits is odd.

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

The square root of 232023391 is about 15232.3140395673. The cubic root of 232023391 is about 614.4840151796.

The spelling of 232023391 in words is "two hundred thirty-two million, twenty-three thousand, three hundred ninety-one".