57103231 has 2 divisors, whose sum is σ = 57103232. Its totient is φ = 57103230.

The previous prime is 57103219. The next prime is 57103237. The reversal of 57103231 is 13230175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57103231 - 2⁵ = 57103199 is a prime.

It is a super-2 number, since 2×57103231² = 6521557981278722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57103237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28551615 + 28551616.

It is an arithmetic number, because the mean of its divisors is an integer number (28551616).

Almost surely, 2^57103231 is an apocalyptic number.

57103231 is a deficient number, since it is larger than the sum of its proper divisors (1).

57103231 is an equidigital number, since it uses as much as digits as its factorization.

57103231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 57103231 is about 7556.6679826495. The cubic root of 57103231 is about 385.0823032005.

The spelling of 57103231 in words is "fifty-seven million, one hundred three thousand, two hundred thirty-one".