131310117915919 has 2 divisors, whose sum is σ = 131310117915920. Its totient is φ = 131310117915918.

The previous prime is 131310117915871. The next prime is 131310117915929. The reversal of 131310117915919 is 919519711013131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131310117915919 - 2⁷ = 131310117915791 is a prime.

It is a super-2 number, since 2×131310117915919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131310117915929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65655058957959 + 65655058957960.

It is an arithmetic number, because the mean of its divisors is an integer number (65655058957960).

Almost surely, 2^{131310117915919} is an apocalyptic number.

131310117915919 is a deficient number, since it is larger than the sum of its proper divisors (1).

131310117915919 is an equidigital number, since it uses as much as digits as its factorization.

131310117915919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229635, while the sum is 52.

The spelling of 131310117915919 in words is "one hundred thirty-one trillion, three hundred ten billion, one hundred seventeen million, nine hundred fifteen thousand, nine hundred nineteen".