131000321402569 has 2 divisors, whose sum is σ = 131000321402570. Its totient is φ = 131000321402568.

The previous prime is 131000321402563. The next prime is 131000321402593. The reversal of 131000321402569 is 965204123000131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127143665640000 + 3856655762569 = 11275800^2 + 1963837^2 .

It is a cyclic number.

It is not a de Polignac number, because 131000321402569 - 2⁵ = 131000321402537 is a prime.

It is a super-2 number, since 2×131000321402569² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131000321402563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65500160701284 + 65500160701285.

It is an arithmetic number, because the mean of its divisors is an integer number (65500160701285).

Almost surely, 2^{131000321402569} is an apocalyptic number.

It is an amenable number.

131000321402569 is a deficient number, since it is larger than the sum of its proper divisors (1).

131000321402569 is an equidigital number, since it uses as much as digits as its factorization.

131000321402569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 131000321402569 in words is "one hundred thirty-one trillion, three hundred twenty-one million, four hundred two thousand, five hundred sixty-nine".