131133100591 has 2 divisors, whose sum is σ = 131133100592. Its totient is φ = 131133100590.

The previous prime is 131133100577. The next prime is 131133100643. The reversal of 131133100591 is 195001331131.

It is a weak prime.

It is an emirp because it is prime and its reverse (195001331131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131133100591 - 2⁵ = 131133100559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131133100291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65566550295 + 65566550296.

It is an arithmetic number, because the mean of its divisors is an integer number (65566550296).

Almost surely, 2^131133100591 is an apocalyptic number.

131133100591 is a deficient number, since it is larger than the sum of its proper divisors (1).

131133100591 is an equidigital number, since it uses as much as digits as its factorization.

131133100591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215, while the sum is 28.

The spelling of 131133100591 in words is "one hundred thirty-one billion, one hundred thirty-three million, one hundred thousand, five hundred ninety-one".