131165443099 has 2 divisors, whose sum is σ = 131165443100. Its totient is φ = 131165443098.

The previous prime is 131165443067. The next prime is 131165443133. The reversal of 131165443099 is 990344561131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131165443099 - 2⁵ = 131165443067 is a prime.

It is not a weakly prime, because it can be changed into another prime (131165443399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65582721549 + 65582721550.

It is an arithmetic number, because the mean of its divisors is an integer number (65582721550).

Almost surely, 2^131165443099 is an apocalyptic number.

131165443099 is a deficient number, since it is larger than the sum of its proper divisors (1).

131165443099 is an equidigital number, since it uses as much as digits as its factorization.

131165443099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 131165443099 in words is "one hundred thirty-one billion, one hundred sixty-five million, four hundred forty-three thousand, ninety-nine".