131373126317 has 2 divisors, whose sum is σ = 131373126318. Its totient is φ = 131373126316.

The previous prime is 131373126293. The next prime is 131373126389. The reversal of 131373126317 is 713621373131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68441884996 + 62931241321 = 261614^2 + 250861^2 .

It is a cyclic number.

It is not a de Polignac number, because 131373126317 - 2⁸ = 131373126061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131373123317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65686563158 + 65686563159.

It is an arithmetic number, because the mean of its divisors is an integer number (65686563159).

Almost surely, 2^131373126317 is an apocalyptic number.

It is an amenable number.

131373126317 is a deficient number, since it is larger than the sum of its proper divisors (1).

131373126317 is an equidigital number, since it uses as much as digits as its factorization.

131373126317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

Adding to 131373126317 its reverse (713621373131), we get a palindrome (844994499448).

The spelling of 131373126317 in words is "one hundred thirty-one billion, three hundred seventy-three million, one hundred twenty-six thousand, three hundred seventeen".