13131210203317 has 2 divisors, whose sum is σ = 13131210203318. Its totient is φ = 13131210203316.

The previous prime is 13131210203299. The next prime is 13131210203351. The reversal of 13131210203317 is 71330201213131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13081922207236 + 49287996081 = 3616894^2 + 222009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13131210203317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131210243317) 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, 6565605101658 + 6565605101659.

It is an arithmetic number, because the mean of its divisors is an integer number (6565605101659).

Almost surely, 2^{13131210203317} is an apocalyptic number.

It is an amenable number.

13131210203317 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131210203317 is an equidigital number, since it uses as much as digits as its factorization.

13131210203317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

Adding to 13131210203317 its reverse (71330201213131), we get a palindrome (84461411416448).

The spelling of 13131210203317 in words is "thirteen trillion, one hundred thirty-one billion, two hundred ten million, two hundred three thousand, three hundred seventeen".