230312431 has 2 divisors, whose sum is σ = 230312432. Its totient is φ = 230312430.

The previous prime is 230312389. The next prime is 230312443. The reversal of 230312431 is 134213032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230312431 - 2⁹ = 230311919 is a prime.

It is a super-2 number, since 2×230312431² = 106087631746259522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230312399 and 230312408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230312491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115156215 + 115156216.

It is an arithmetic number, because the mean of its divisors is an integer number (115156216).

Almost surely, 2^230312431 is an apocalyptic number.

230312431 is a deficient number, since it is larger than the sum of its proper divisors (1).

230312431 is an equidigital number, since it uses as much as digits as its factorization.

230312431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 230312431 is about 15176.0479374572. The cubic root of 230312431 is about 612.9698683059.

Adding to 230312431 its reverse (134213032), we get a palindrome (364525463).

The spelling of 230312431 in words is "two hundred thirty million, three hundred twelve thousand, four hundred thirty-one".