13204131313 has 2 divisors, whose sum is σ = 13204131314. Its totient is φ = 13204131312.

The previous prime is 13204131307. The next prime is 13204131331. The reversal of 13204131313 is 31313140231.

Together with next prime (13204131331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6946055649 + 6258075664 = 83343^2 + 79108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13204131313 is a prime.

It is not a weakly prime, because it can be changed into another prime (13204131613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6602065656 + 6602065657.

It is an arithmetic number, because the mean of its divisors is an integer number (6602065657).

Almost surely, 2^13204131313 is an apocalyptic number.

It is an amenable number.

13204131313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13204131313 is an equidigital number, since it uses as much as digits as its factorization.

13204131313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13204131313 its reverse (31313140231), we get a palindrome (44517271544).

The spelling of 13204131313 in words is "thirteen billion, two hundred four million, one hundred thirty-one thousand, three hundred thirteen".