233930231 has 2 divisors, whose sum is σ = 233930232. Its totient is φ = 233930230.

The previous prime is 233930219. The next prime is 233930239. The reversal of 233930231 is 132039332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 233930231 - 2¹⁴ = 233913847 is a prime.

It is a super-2 number, since 2×233930231² = 109446705951426722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233930231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233930239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116965115 + 116965116.

It is an arithmetic number, because the mean of its divisors is an integer number (116965116).

Almost surely, 2^233930231 is an apocalyptic number.

233930231 is a deficient number, since it is larger than the sum of its proper divisors (1).

233930231 is an equidigital number, since it uses as much as digits as its factorization.

233930231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 233930231 is about 15294.7778996624. Note that the first 3 decimals coincide. The cubic root of 233930231 is about 616.1627646226.

Adding to 233930231 its reverse (132039332), we get a palindrome (365969563).

The spelling of 233930231 in words is "two hundred thirty-three million, nine hundred thirty thousand, two hundred thirty-one".