131279488313 has 2 divisors, whose sum is σ = 131279488314. Its totient is φ = 131279488312.

The previous prime is 131279488237. The next prime is 131279488337. The reversal of 131279488313 is 313884972131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72088491049 + 59190997264 = 268493^2 + 243292^2 .

It is a cyclic number.

It is not a de Polignac number, because 131279488313 - 2¹⁰ = 131279487289 is a prime.

It is not a weakly prime, because it can be changed into another prime (131279488363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65639744156 + 65639744157.

It is an arithmetic number, because the mean of its divisors is an integer number (65639744157).

Almost surely, 2^131279488313 is an apocalyptic number.

It is an amenable number.

131279488313 is a deficient number, since it is larger than the sum of its proper divisors (1).

131279488313 is an equidigital number, since it uses as much as digits as its factorization.

131279488313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The spelling of 131279488313 in words is "one hundred thirty-one billion, two hundred seventy-nine million, four hundred eighty-eight thousand, three hundred thirteen".