131090344817 has 2 divisors, whose sum is σ = 131090344818. Its totient is φ = 131090344816.

The previous prime is 131090344771. The next prime is 131090344823. The reversal of 131090344817 is 718443090131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129104394721 + 1985950096 = 359311^2 + 44564^2 .

It is a cyclic number.

It is not a de Polignac number, because 131090344817 - 2¹⁴ = 131090328433 is a prime.

It is not a weakly prime, because it can be changed into another prime (131090344897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65545172408 + 65545172409.

It is an arithmetic number, because the mean of its divisors is an integer number (65545172409).

Almost surely, 2^131090344817 is an apocalyptic number.

It is an amenable number.

131090344817 is a deficient number, since it is larger than the sum of its proper divisors (1).

131090344817 is an equidigital number, since it uses as much as digits as its factorization.

131090344817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 131090344817 in words is "one hundred thirty-one billion, ninety million, three hundred forty-four thousand, eight hundred seventeen".