102131256260377 has 2 divisors, whose sum is σ = 102131256260378. Its totient is φ = 102131256260376.

The previous prime is 102131256260351. The next prime is 102131256260387. The reversal of 102131256260377 is 773062652131201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83610102548736 + 18521153711641 = 9143856^2 + 4303621^2 .

It is a cyclic number.

It is not a de Polignac number, because 102131256260377 - 2³⁵ = 102096896522009 is a prime.

It is not a weakly prime, because it can be changed into another prime (102131256260387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065628130188 + 51065628130189.

It is an arithmetic number, because the mean of its divisors is an integer number (51065628130189).

Almost surely, 2^{102131256260377} is an apocalyptic number.

It is an amenable number.

102131256260377 is a deficient number, since it is larger than the sum of its proper divisors (1).

102131256260377 is an equidigital number, since it uses as much as digits as its factorization.

102131256260377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 102131256260377 in words is "one hundred two trillion, one hundred thirty-one billion, two hundred fifty-six million, two hundred sixty thousand, three hundred seventy-seven".