131212442330191 has 2 divisors, whose sum is σ = 131212442330192. Its totient is φ = 131212442330190.

The previous prime is 131212442330119. The next prime is 131212442330237. The reversal of 131212442330191 is 191033244212131.

Together with previous prime (131212442330119) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131212442330191 - 2³⁷ = 131075003376719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131212442330191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131212442330891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606221165095 + 65606221165096.

It is an arithmetic number, because the mean of its divisors is an integer number (65606221165096).

Almost surely, 2^{131212442330191} is an apocalyptic number.

131212442330191 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212442330191 is an equidigital number, since it uses as much as digits as its factorization.

131212442330191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 131212442330191 in words is "one hundred thirty-one trillion, two hundred twelve billion, four hundred forty-two million, three hundred thirty thousand, one hundred ninety-one".