125121052611677 has 2 divisors, whose sum is σ = 125121052611678. Its totient is φ = 125121052611676.

The previous prime is 125121052611673. The next prime is 125121052611713. The reversal of 125121052611677 is 776116250121521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103387796944441 + 21733255667236 = 10167979^2 + 4661894^2 .

It is a cyclic number.

It is not a de Polignac number, because 125121052611677 - 2² = 125121052611673 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125121052611673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62560526305838 + 62560526305839.

It is an arithmetic number, because the mean of its divisors is an integer number (62560526305839).

Almost surely, 2^{125121052611677} is an apocalyptic number.

It is an amenable number.

125121052611677 is a deficient number, since it is larger than the sum of its proper divisors (1).

125121052611677 is an equidigital number, since it uses as much as digits as its factorization.

125121052611677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 125121052611677 in words is "one hundred twenty-five trillion, one hundred twenty-one billion, fifty-two million, six hundred eleven thousand, six hundred seventy-seven".