230957431 has 2 divisors, whose sum is σ = 230957432. Its totient is φ = 230957430.

The previous prime is 230957413. The next prime is 230957443. The reversal of 230957431 is 134759032.

230957431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (230957413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230957431 - 2¹³ = 230949239 is a prime.

It is a super-2 number, since 2×230957431² = 106682669868239522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230957401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115478715 + 115478716.

It is an arithmetic number, because the mean of its divisors is an integer number (115478716).

Almost surely, 2^230957431 is an apocalyptic number.

230957431 is a deficient number, since it is larger than the sum of its proper divisors (1).

230957431 is an equidigital number, since it uses as much as digits as its factorization.

230957431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 230957431 is about 15197.2836717619. The cubic root of 230957431 is about 613.5415512397.

The spelling of 230957431 in words is "two hundred thirty million, nine hundred fifty-seven thousand, four hundred thirty-one".