131376720113 has 2 divisors, whose sum is σ = 131376720114. Its totient is φ = 131376720112.

The previous prime is 131376720109. The next prime is 131376720187. The reversal of 131376720113 is 311027673131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130911541489 + 465178624 = 361817^2 + 21568^2 .

It is a cyclic number.

It is not a de Polignac number, because 131376720113 - 2² = 131376720109 is a prime.

It is not a weakly prime, because it can be changed into another prime (131376720193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65688360056 + 65688360057.

It is an arithmetic number, because the mean of its divisors is an integer number (65688360057).

Almost surely, 2^131376720113 is an apocalyptic number.

It is an amenable number.

131376720113 is a deficient number, since it is larger than the sum of its proper divisors (1).

131376720113 is an equidigital number, since it uses as much as digits as its factorization.

131376720113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The spelling of 131376720113 in words is "one hundred thirty-one billion, three hundred seventy-six million, seven hundred twenty thousand, one hundred thirteen".