256960112131 has 2 divisors, whose sum is σ = 256960112132. Its totient is φ = 256960112130.

The previous prime is 256960112117. The next prime is 256960112141. The reversal of 256960112131 is 131211069652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256960112131 - 2⁵ = 256960112099 is a prime.

It is a super-2 number, since 2×256960112131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (256960112141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128480056065 + 128480056066.

It is an arithmetic number, because the mean of its divisors is an integer number (128480056066).

Almost surely, 2^256960112131 is an apocalyptic number.

256960112131 is a deficient number, since it is larger than the sum of its proper divisors (1).

256960112131 is an equidigital number, since it uses as much as digits as its factorization.

256960112131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 256960112131 in words is "two hundred fifty-six billion, nine hundred sixty million, one hundred twelve thousand, one hundred thirty-one".