131322100277 has 2 divisors, whose sum is σ = 131322100278. Its totient is φ = 131322100276.

The previous prime is 131322100271. The next prime is 131322100309. The reversal of 131322100277 is 772001223131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130432211716 + 889888561 = 361154^2 + 29831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131322100277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131322100271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65661050138 + 65661050139.

It is an arithmetic number, because the mean of its divisors is an integer number (65661050139).

Almost surely, 2^131322100277 is an apocalyptic number.

It is an amenable number.

131322100277 is a deficient number, since it is larger than the sum of its proper divisors (1).

131322100277 is an equidigital number, since it uses as much as digits as its factorization.

131322100277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The spelling of 131322100277 in words is "one hundred thirty-one billion, three hundred twenty-two million, one hundred thousand, two hundred seventy-seven".