131423131421191 has 2 divisors, whose sum is σ = 131423131421192. Its totient is φ = 131423131421190.

The previous prime is 131423131421171. The next prime is 131423131421201. The reversal of 131423131421191 is 191124131324131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131423131421191 - 2²⁵ = 131423097866759 is a prime.

It is a super-2 number, since 2×131423131421191² (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 131423131421191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131423131421111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65711565710595 + 65711565710596.

It is an arithmetic number, because the mean of its divisors is an integer number (65711565710596).

Almost surely, 2^{131423131421191} is an apocalyptic number.

131423131421191 is a deficient number, since it is larger than the sum of its proper divisors (1).

131423131421191 is an equidigital number, since it uses as much as digits as its factorization.

131423131421191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The spelling of 131423131421191 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, one hundred thirty-one million, four hundred twenty-one thousand, one hundred ninety-one".