131201403999889 has 2 divisors, whose sum is σ = 131201403999890. Its totient is φ = 131201403999888.

The previous prime is 131201403999877. The next prime is 131201403999923. The reversal of 131201403999889 is 988999304102131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122675383595664 + 8526020404225 = 11075892^2 + 2919935^2 .

It is a cyclic number.

It is not a de Polignac number, because 131201403999889 - 2²¹ = 131201401902737 is a prime.

It is not a weakly prime, because it can be changed into another prime (131201403999829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600701999944 + 65600701999945.

It is an arithmetic number, because the mean of its divisors is an integer number (65600701999945).

Almost surely, 2^{131201403999889} is an apocalyptic number.

It is an amenable number.

131201403999889 is a deficient number, since it is larger than the sum of its proper divisors (1).

131201403999889 is an equidigital number, since it uses as much as digits as its factorization.

131201403999889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30233088, while the sum is 67.

The spelling of 131201403999889 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred three million, nine hundred ninety-nine thousand, eight hundred eighty-nine".