131202169486769 has 2 divisors, whose sum is σ = 131202169486770. Its totient is φ = 131202169486768.

The previous prime is 131202169486727. The next prime is 131202169486789. The reversal of 131202169486769 is 967684961202131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130943507733025 + 258661753744 = 11443055^2 + 508588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131202169486769 is a prime.

It is a super-2 number, since 2×131202169486769² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131202169486789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601084743384 + 65601084743385.

It is an arithmetic number, because the mean of its divisors is an integer number (65601084743385).

Almost surely, 2^{131202169486769} is an apocalyptic number.

It is an amenable number.

131202169486769 is a deficient number, since it is larger than the sum of its proper divisors (1).

131202169486769 is an equidigital number, since it uses as much as digits as its factorization.

131202169486769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 131202169486769 in words is "one hundred thirty-one trillion, two hundred two billion, one hundred sixty-nine million, four hundred eighty-six thousand, seven hundred sixty-nine".