131326542337 has 2 divisors, whose sum is σ = 131326542338. Its totient is φ = 131326542336.

The previous prime is 131326542313. The next prime is 131326542343. The reversal of 131326542337 is 733245623131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123971593216 + 7354949121 = 352096^2 + 85761^2 .

It is a cyclic number.

It is not a de Polignac number, because 131326542337 - 2⁷ = 131326542209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131326542337.

It is not a weakly prime, because it can be changed into another prime (131326549337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65663271168 + 65663271169.

It is an arithmetic number, because the mean of its divisors is an integer number (65663271169).

Almost surely, 2^131326542337 is an apocalyptic number.

It is an amenable number.

131326542337 is a deficient number, since it is larger than the sum of its proper divisors (1).

131326542337 is an equidigital number, since it uses as much as digits as its factorization.

131326542337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 40.

The spelling of 131326542337 in words is "one hundred thirty-one billion, three hundred twenty-six million, five hundred forty-two thousand, three hundred thirty-seven".