131122233169 has 2 divisors, whose sum is σ = 131122233170. Its totient is φ = 131122233168.

The previous prime is 131122233161. The next prime is 131122233181. The reversal of 131122233169 is 961332221131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109839216400 + 21283016769 = 331420^2 + 145887^2 .

It is a cyclic number.

It is not a de Polignac number, because 131122233169 - 2³ = 131122233161 is a prime.

It is a super-2 number, since 2×131122233169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131122233161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65561116584 + 65561116585.

It is an arithmetic number, because the mean of its divisors is an integer number (65561116585).

Almost surely, 2^131122233169 is an apocalyptic number.

It is an amenable number.

131122233169 is a deficient number, since it is larger than the sum of its proper divisors (1).

131122233169 is an equidigital number, since it uses as much as digits as its factorization.

131122233169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The spelling of 131122233169 in words is "one hundred thirty-one billion, one hundred twenty-two million, two hundred thirty-three thousand, one hundred sixty-nine".