131111332271 has 2 divisors, whose sum is σ = 131111332272. Its totient is φ = 131111332270.

The previous prime is 131111332249. The next prime is 131111332333. The reversal of 131111332271 is 172233111131.

It is a weak prime.

It is an emirp because it is prime and its reverse (172233111131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131111332271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131111332271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131111332571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65555666135 + 65555666136.

It is an arithmetic number, because the mean of its divisors is an integer number (65555666136).

Almost surely, 2^131111332271 is an apocalyptic number.

131111332271 is a deficient number, since it is larger than the sum of its proper divisors (1).

131111332271 is an equidigital number, since it uses as much as digits as its factorization.

131111332271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 26.

The spelling of 131111332271 in words is "one hundred thirty-one billion, one hundred eleven million, three hundred thirty-two thousand, two hundred seventy-one".