131201404323439 has 2 divisors, whose sum is σ = 131201404323440. Its totient is φ = 131201404323438.

The previous prime is 131201404323389. The next prime is 131201404323497. The reversal of 131201404323439 is 934323404102131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131201404323439 - 2²⁹ = 131200867452527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131201404320439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600702161719 + 65600702161720.

It is an arithmetic number, because the mean of its divisors is an integer number (65600702161720).

Almost surely, 2^{131201404323439} is an apocalyptic number.

131201404323439 is a deficient number, since it is larger than the sum of its proper divisors (1).

131201404323439 is an equidigital number, since it uses as much as digits as its factorization.

131201404323439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 131201404323439 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred four million, three hundred twenty-three thousand, four hundred thirty-nine".