131320000223197 has 2 divisors, whose sum is σ = 131320000223198. Its totient is φ = 131320000223196.

The previous prime is 131320000223183. The next prime is 131320000223317. The reversal of 131320000223197 is 791322000023131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119135893373721 + 12184106849476 = 10914939^2 + 3490574^2 .

It is a cyclic number.

It is not a de Polignac number, because 131320000223197 - 2¹¹ = 131320000221149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131320000223107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65660000111598 + 65660000111599.

It is an arithmetic number, because the mean of its divisors is an integer number (65660000111599).

Almost surely, 2^{131320000223197} is an apocalyptic number.

It is an amenable number.

131320000223197 is a deficient number, since it is larger than the sum of its proper divisors (1).

131320000223197 is an equidigital number, since it uses as much as digits as its factorization.

131320000223197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 131320000223197 in words is "one hundred thirty-one trillion, three hundred twenty billion, two hundred twenty-three thousand, one hundred ninety-seven".