131188358970049 has 2 divisors, whose sum is σ = 131188358970050. Its totient is φ = 131188358970048.

The previous prime is 131188358970029. The next prime is 131188358970091. The reversal of 131188358970049 is 940079853881131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69681090150400 + 61507268819649 = 8347520^2 + 7842657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131188358970049 is a prime.

It is not a weakly prime, because it can be changed into another prime (131188358970029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65594179485024 + 65594179485025.

It is an arithmetic number, because the mean of its divisors is an integer number (65594179485025).

Almost surely, 2^{131188358970049} is an apocalyptic number.

It is an amenable number.

131188358970049 is a deficient number, since it is larger than the sum of its proper divisors (1).

131188358970049 is an equidigital number, since it uses as much as digits as its factorization.

131188358970049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52254720, while the sum is 67.

The spelling of 131188358970049 in words is "one hundred thirty-one trillion, one hundred eighty-eight billion, three hundred fifty-eight million, nine hundred seventy thousand, forty-nine".