102131256641311 has 4 divisors (see below), whose sum is σ = 102155069016000. Its totient is φ = 102107444266624.

The previous prime is 102131256641279. The next prime is 102131256641357. The reversal of 102131256641311 is 113146652131201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102131256641311 - 2⁵ = 102131256641279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102131256641371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11906180911 + ... + 11906189488.

It is an arithmetic number, because the mean of its divisors is an integer number (25538767254000).

Almost surely, 2^{102131256641311} is an apocalyptic number.

102131256641311 is a deficient number, since it is larger than the sum of its proper divisors (23812374689).

102131256641311 is an equidigital number, since it uses as much as digits as its factorization.

102131256641311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23812374688.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 102131256641311 in words is "one hundred two trillion, one hundred thirty-one billion, two hundred fifty-six million, six hundred forty-one thousand, three hundred eleven".