13240404313 has 2 divisors, whose sum is σ = 13240404314. Its totient is φ = 13240404312.

The previous prime is 13240404293. The next prime is 13240404341. The reversal of 13240404313 is 31340404231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12152196169 + 1088208144 = 110237^2 + 32988^2 .

It is a cyclic number.

It is not a de Polignac number, because 13240404313 - 2⁹ = 13240403801 is a prime.

It is not a weakly prime, because it can be changed into another prime (13240404613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6620202156 + 6620202157.

It is an arithmetic number, because the mean of its divisors is an integer number (6620202157).

Almost surely, 2^13240404313 is an apocalyptic number.

It is an amenable number.

13240404313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13240404313 is an equidigital number, since it uses as much as digits as its factorization.

13240404313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13240404313 its reverse (31340404231), we get a palindrome (44580808544).

The spelling of 13240404313 in words is "thirteen billion, two hundred forty million, four hundred four thousand, three hundred thirteen".