131396796197 has 4 divisors (see below), whose sum is σ = 131516575596. Its totient is φ = 131277016800.

The previous prime is 131396796191. The next prime is 131396796211. The reversal of 131396796197 is 791697693131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 791697693131 = 3023 ⋅261891397.

It can be written as a sum of positive squares in 2 ways, for example, as 83101899076 + 48294897121 = 288274^2 + 219761^2 .

It is a cyclic number.

It is not a de Polignac number, because 131396796197 - 2⁶ = 131396796133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131396796191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59888054 + ... + 59890247.

It is an arithmetic number, because the mean of its divisors is an integer number (32879143899).

Almost surely, 2^131396796197 is an apocalyptic number.

It is an amenable number.

131396796197 is a deficient number, since it is larger than the sum of its proper divisors (119779399).

131396796197 is a wasteful number, since it uses less digits than its factorization.

131396796197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119779398.

The product of its digits is 11573604, while the sum is 62.

The spelling of 131396796197 in words is "one hundred thirty-one billion, three hundred ninety-six million, seven hundred ninety-six thousand, one hundred ninety-seven".