230230431931 has 2 divisors, whose sum is σ = 230230431932. Its totient is φ = 230230431930.

The previous prime is 230230431923. The next prime is 230230431989. The reversal of 230230431931 is 139134032032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230230431931 - 2³ = 230230431923 is a prime.

It is a super-2 number, since 2×230230431931² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230230431893 and 230230431902.

It is not a weakly prime, because it can be changed into another prime (230230431731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115115215965 + 115115215966.

It is an arithmetic number, because the mean of its divisors is an integer number (115115215966).

Almost surely, 2^230230431931 is an apocalyptic number.

230230431931 is a deficient number, since it is larger than the sum of its proper divisors (1).

230230431931 is an equidigital number, since it uses as much as digits as its factorization.

230230431931 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.

Adding to 230230431931 its reverse (139134032032), we get a palindrome (369364463963).

The spelling of 230230431931 in words is "two hundred thirty billion, two hundred thirty million, four hundred thirty-one thousand, nine hundred thirty-one".