131331000221989 has 2 divisors, whose sum is σ = 131331000221990. Its totient is φ = 131331000221988.

The previous prime is 131331000221957. The next prime is 131331000222127. The reversal of 131331000221989 is 989122000133131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70140792500100 + 61190207721889 = 8375010^2 + 7822417^2 .

It is a cyclic number.

It is not a de Polignac number, because 131331000221989 - 2⁵ = 131331000221957 is a prime.

It is a super-2 number, since 2×131331000221989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131331000221929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65665500110994 + 65665500110995.

It is an arithmetic number, because the mean of its divisors is an integer number (65665500110995).

Almost surely, 2^{131331000221989} is an apocalyptic number.

It is an amenable number.

131331000221989 is a deficient number, since it is larger than the sum of its proper divisors (1).

131331000221989 is an equidigital number, since it uses as much as digits as its factorization.

131331000221989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 131331000221989 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, two hundred twenty-one thousand, nine hundred eighty-nine".