230979031 has 2 divisors, whose sum is σ = 230979032. Its totient is φ = 230979030.

The previous prime is 230978981. The next prime is 230979043. The reversal of 230979031 is 130979032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230979031 is a prime.

It is a super-2 number, since 2×230979031² = 106702625523397922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230979061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115489515 + 115489516.

It is an arithmetic number, because the mean of its divisors is an integer number (115489516).

Almost surely, 2^230979031 is an apocalyptic number.

230979031 is a deficient number, since it is larger than the sum of its proper divisors (1).

230979031 is an equidigital number, since it uses as much as digits as its factorization.

230979031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 230979031 is about 15197.9943084606. The cubic root of 230979031 is about 613.5606775412.

Subtracting from 230979031 its reverse (130979032), we obtain a palindrome (99999999).

The spelling of 230979031 in words is "two hundred thirty million, nine hundred seventy-nine thousand, thirty-one".