233023131 has 72 divisors (see below), whose sum is σ = 402594192. Its totient is φ = 129254400.

The previous prime is 233023123. The next prime is 233023157. The reversal of 233023131 is 131320332.

It is not a de Polignac number, because 233023131 - 2³ = 233023123 is a prime.

It is a super-2 number, since 2×233023131² = 108599559162086322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233023121) 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 in 71 ways as a sum of consecutive naturals, for example, 758880 + ... + 759186.

It is an arithmetic number, because the mean of its divisors is an integer number (5591586).

Almost surely, 2^233023131 is an apocalyptic number.

233023131 is a deficient number, since it is larger than the sum of its proper divisors (169571061).

233023131 is a wasteful number, since it uses less digits than its factorization.

233023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 233023131 is about 15265.0951847671. The cubic root of 233023131 is about 615.3653114165.

Adding to 233023131 its reverse (131320332), we get a palindrome (364343463).

The spelling of 233023131 in words is "two hundred thirty-three million, twenty-three thousand, one hundred thirty-one".