131127776191 has 2 divisors, whose sum is σ = 131127776192. Its totient is φ = 131127776190.

The previous prime is 131127776173. The next prime is 131127776207. The reversal of 131127776191 is 191677721131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131127776191 - 2⁵ = 131127776159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131127776141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65563888095 + 65563888096.

It is an arithmetic number, because the mean of its divisors is an integer number (65563888096).

Almost surely, 2^131127776191 is an apocalyptic number.

131127776191 is a deficient number, since it is larger than the sum of its proper divisors (1).

131127776191 is an equidigital number, since it uses as much as digits as its factorization.

131127776191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111132, while the sum is 46.

The spelling of 131127776191 in words is "one hundred thirty-one billion, one hundred twenty-seven million, seven hundred seventy-six thousand, one hundred ninety-one".