57281201231 has 2 divisors, whose sum is σ = 57281201232. Its totient is φ = 57281201230.

The previous prime is 57281201227. The next prime is 57281201239. The reversal of 57281201231 is 13210218275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57281201231 - 2² = 57281201227 is a prime.

It is a super-2 number, since 2×57281201231² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57281201239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28640600615 + 28640600616.

It is an arithmetic number, because the mean of its divisors is an integer number (28640600616).

Almost surely, 2^57281201231 is an apocalyptic number.

57281201231 is a deficient number, since it is larger than the sum of its proper divisors (1).

57281201231 is an equidigital number, since it uses as much as digits as its factorization.

57281201231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 57281201231 in words is "fifty-seven billion, two hundred eighty-one million, two hundred one thousand, two hundred thirty-one".