130131199997 has 2 divisors, whose sum is σ = 130131199998. Its totient is φ = 130131199996.

The previous prime is 130131199993. The next prime is 130131200029. The reversal of 130131199997 is 799991131031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86213291641 + 43917908356 = 293621^2 + 209566^2 .

It is a cyclic number.

It is not a de Polignac number, because 130131199997 - 2² = 130131199993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130131199993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65065599998 + 65065599999.

It is an arithmetic number, because the mean of its divisors is an integer number (65065599999).

Almost surely, 2^130131199997 is an apocalyptic number.

It is an amenable number.

130131199997 is a deficient number, since it is larger than the sum of its proper divisors (1).

130131199997 is an equidigital number, since it uses as much as digits as its factorization.

130131199997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 413343, while the sum is 53.

The spelling of 130131199997 in words is "one hundred thirty billion, one hundred thirty-one million, one hundred ninety-nine thousand, nine hundred ninety-seven".