131201443131391 has 2 divisors, whose sum is σ = 131201443131392. Its totient is φ = 131201443131390.

The previous prime is 131201443131377. The next prime is 131201443131443. The reversal of 131201443131391 is 193131344102131.

It is a weak prime.

It is an emirp because it is prime and its reverse (193131344102131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131201443131391 - 2¹³ = 131201443123199 is a prime.

It is a super-2 number, since 2×131201443131391² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131201443131391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131201443131301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600721565695 + 65600721565696.

It is an arithmetic number, because the mean of its divisors is an integer number (65600721565696).

Almost surely, 2^{131201443131391} is an apocalyptic number.

131201443131391 is a deficient number, since it is larger than the sum of its proper divisors (1).

131201443131391 is an equidigital number, since it uses as much as digits as its factorization.

131201443131391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 131201443131391 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred forty-three million, one hundred thirty-one thousand, three hundred ninety-one".