131120344215493 has 2 divisors, whose sum is σ = 131120344215494. Its totient is φ = 131120344215492.

The previous prime is 131120344215359. The next prime is 131120344215521. The reversal of 131120344215493 is 394512443021131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95801772714244 + 35318571501249 = 9787838^2 + 5942943^2 .

It is a cyclic number.

It is not a de Polignac number, because 131120344215493 - 2³³ = 131111754280901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131120344215193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65560172107746 + 65560172107747.

It is an arithmetic number, because the mean of its divisors is an integer number (65560172107747).

Almost surely, 2^{131120344215493} is an apocalyptic number.

It is an amenable number.

131120344215493 is a deficient number, since it is larger than the sum of its proper divisors (1).

131120344215493 is an equidigital number, since it uses as much as digits as its factorization.

131120344215493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 131120344215493 in words is "one hundred thirty-one trillion, one hundred twenty billion, three hundred forty-four million, two hundred fifteen thousand, four hundred ninety-three".