131383166399 has 2 divisors, whose sum is σ = 131383166400. Its totient is φ = 131383166398.

The previous prime is 131383166359. The next prime is 131383166413. The reversal of 131383166399 is 993661383131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131383166399 - 2²⁴ = 131366389183 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131383166399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131383166359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65691583199 + 65691583200.

It is an arithmetic number, because the mean of its divisors is an integer number (65691583200).

Almost surely, 2^131383166399 is an apocalyptic number.

131383166399 is a deficient number, since it is larger than the sum of its proper divisors (1).

131383166399 is an equidigital number, since it uses as much as digits as its factorization.

131383166399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1889568, while the sum is 53.

The spelling of 131383166399 in words is "one hundred thirty-one billion, three hundred eighty-three million, one hundred sixty-six thousand, three hundred ninety-nine".