251355107901113 has 2 divisors, whose sum is σ = 251355107901114. Its totient is φ = 251355107901112.

The previous prime is 251355107901097. The next prime is 251355107901197. The reversal of 251355107901113 is 311109701553152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220877498354704 + 30477609546409 = 14861948^2 + 5520653^2 .

It is a cyclic number.

It is not a de Polignac number, because 251355107901113 - 2⁴ = 251355107901097 is a prime.

It is not a weakly prime, because it can be changed into another prime (251355107904113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125677553950556 + 125677553950557.

It is an arithmetic number, because the mean of its divisors is an integer number (125677553950557).

Almost surely, 2^{251355107901113} is an apocalyptic number.

It is an amenable number.

251355107901113 is a deficient number, since it is larger than the sum of its proper divisors (1).

251355107901113 is an equidigital number, since it uses as much as digits as its factorization.

251355107901113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141750, while the sum is 44.

The spelling of 251355107901113 in words is "two hundred fifty-one trillion, three hundred fifty-five billion, one hundred seven million, nine hundred one thousand, one hundred thirteen".