131001044199989 has 2 divisors, whose sum is σ = 131001044199990. Its totient is φ = 131001044199988.

The previous prime is 131001044199941. The next prime is 131001044200043. The reversal of 131001044199989 is 989991440100131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71722978599364 + 59278065600625 = 8468942^2 + 7699225^2 .

It is a cyclic number.

It is not a de Polignac number, because 131001044199989 - 2⁸ = 131001044199733 is a prime.

It is a super-2 number, since 2×131001044199989² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131001044196989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65500522099994 + 65500522099995.

It is an arithmetic number, because the mean of its divisors is an integer number (65500522099995).

Almost surely, 2^{131001044199989} is an apocalyptic number.

It is an amenable number.

131001044199989 is a deficient number, since it is larger than the sum of its proper divisors (1).

131001044199989 is an equidigital number, since it uses as much as digits as its factorization.

131001044199989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2519424, while the sum is 59.

The spelling of 131001044199989 in words is "one hundred thirty-one trillion, one billion, forty-four million, one hundred ninety-nine thousand, nine hundred eighty-nine".