230515331 has 2 divisors, whose sum is σ = 230515332. Its totient is φ = 230515330.

The previous prime is 230515289. The next prime is 230515333. The reversal of 230515331 is 133515032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230515331 - 2⁶ = 230515267 is a prime.

It is a super-2 number, since 2×230515331² = 106274635652079122, which contains 22 as substring.

Together with 230515333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 230515297 and 230515306.

It is not a weakly prime, because it can be changed into another prime (230515333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115257665 + 115257666.

It is an arithmetic number, because the mean of its divisors is an integer number (115257666).

Almost surely, 2^230515331 is an apocalyptic number.

230515331 is a deficient number, since it is larger than the sum of its proper divisors (1).

230515331 is an equidigital number, since it uses as much as digits as its factorization.

230515331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 230515331 is about 15182.7313418897. The cubic root of 230515331 is about 613.1498196308.

It can be divided in two parts, 23051 and 5331, that added together give a palindrome (28382).

The spelling of 230515331 in words is "two hundred thirty million, five hundred fifteen thousand, three hundred thirty-one".