131222311271 has 2 divisors, whose sum is σ = 131222311272. Its totient is φ = 131222311270.

The previous prime is 131222311267. The next prime is 131222311327. The reversal of 131222311271 is 172113222131.

It is a weak prime.

It is an emirp because it is prime and its reverse (172113222131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131222311271 - 2² = 131222311267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131222311271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131222361271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65611155635 + 65611155636.

It is an arithmetic number, because the mean of its divisors is an integer number (65611155636).

Almost surely, 2^131222311271 is an apocalyptic number.

131222311271 is a deficient number, since it is larger than the sum of its proper divisors (1).

131222311271 is an equidigital number, since it uses as much as digits as its factorization.

131222311271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The spelling of 131222311271 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred eleven thousand, two hundred seventy-one".