131323023317 has 2 divisors, whose sum is σ = 131323023318. Its totient is φ = 131323023316.

The previous prime is 131323023287. The next prime is 131323023323. The reversal of 131323023317 is 713320323131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113298886801 + 18024136516 = 336599^2 + 134254^2 .

It is a cyclic number.

It is not a de Polignac number, because 131323023317 - 2⁸ = 131323023061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131323023317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131323023347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65661511658 + 65661511659.

It is an arithmetic number, because the mean of its divisors is an integer number (65661511659).

Almost surely, 2^131323023317 is an apocalyptic number.

It is an amenable number.

131323023317 is a deficient number, since it is larger than the sum of its proper divisors (1).

131323023317 is an equidigital number, since it uses as much as digits as its factorization.

131323023317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 29.

Adding to 131323023317 its reverse (713320323131), we get a palindrome (844643346448).

The spelling of 131323023317 in words is "one hundred thirty-one billion, three hundred twenty-three million, twenty-three thousand, three hundred seventeen".