131340120097 has 2 divisors, whose sum is σ = 131340120098. Its totient is φ = 131340120096.

The previous prime is 131340120059. The next prime is 131340120151. The reversal of 131340120097 is 790021043131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127426866961 + 3913253136 = 356969^2 + 62556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131340120097 is a prime.

It is not a weakly prime, because it can be changed into another prime (131340120997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65670060048 + 65670060049.

It is an arithmetic number, because the mean of its divisors is an integer number (65670060049).

Almost surely, 2^131340120097 is an apocalyptic number.

It is an amenable number.

131340120097 is a deficient number, since it is larger than the sum of its proper divisors (1).

131340120097 is an equidigital number, since it uses as much as digits as its factorization.

131340120097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 131340120097 in words is "one hundred thirty-one billion, three hundred forty million, one hundred twenty thousand, ninety-seven".