230939231 has 2 divisors, whose sum is σ = 230939232. Its totient is φ = 230939230.

The previous prime is 230939221. The next prime is 230939239. The reversal of 230939231 is 132939032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230939231 - 2²² = 226744927 is a prime.

It is a super-2 number, since 2×230939231² = 106665856829742722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230939239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115469615 + 115469616.

It is an arithmetic number, because the mean of its divisors is an integer number (115469616).

Almost surely, 2^230939231 is an apocalyptic number.

230939231 is a deficient number, since it is larger than the sum of its proper divisors (1).

230939231 is an equidigital number, since it uses as much as digits as its factorization.

230939231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 230939231 is about 15196.6848687469. The cubic root of 230939231 is about 613.5254346340.

The spelling of 230939231 in words is "two hundred thirty million, nine hundred thirty-nine thousand, two hundred thirty-one".