13323131357 has 2 divisors, whose sum is σ = 13323131358. Its totient is φ = 13323131356.

The previous prime is 13323131323. The next prime is 13323131401. The reversal of 13323131357 is 75313132331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12129497956 + 1193633401 = 110134^2 + 34549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13323131357 is a prime.

It is a super-2 number, since 2×13323131357² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13323131257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6661565678 + 6661565679.

It is an arithmetic number, because the mean of its divisors is an integer number (6661565679).

Almost surely, 2^13323131357 is an apocalyptic number.

It is an amenable number.

13323131357 is a deficient number, since it is larger than the sum of its proper divisors (1).

13323131357 is an equidigital number, since it uses as much as digits as its factorization.

13323131357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 32.

Adding to 13323131357 its reverse (75313132331), we get a palindrome (88636263688).

The spelling of 13323131357 in words is "thirteen billion, three hundred twenty-three million, one hundred thirty-one thousand, three hundred fifty-seven".