230331232291 has 2 divisors, whose sum is σ = 230331232292. Its totient is φ = 230331232290.

The previous prime is 230331232267. The next prime is 230331232321. The reversal of 230331232291 is 192232133032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230331232291 - 2⁷ = 230331232163 is a prime.

It is a super-2 number, since 2×230331232291² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230331232231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115165616145 + 115165616146.

It is an arithmetic number, because the mean of its divisors is an integer number (115165616146).

Almost surely, 2^230331232291 is an apocalyptic number.

230331232291 is a deficient number, since it is larger than the sum of its proper divisors (1).

230331232291 is an equidigital number, since it uses as much as digits as its factorization.

230331232291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 230331232291 in words is "two hundred thirty billion, three hundred thirty-one million, two hundred thirty-two thousand, two hundred ninety-one".