13213423117 has 2 divisors, whose sum is σ = 13213423118. Its totient is φ = 13213423116.

The previous prime is 13213423079. The next prime is 13213423177. The reversal of 13213423117 is 71132431231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11211844996 + 2001578121 = 105886^2 + 44739^2 .

It is an emirp because it is prime and its reverse (71132431231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13213423117 - 2¹⁵ = 13213390349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13213423177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606711558 + 6606711559.

It is an arithmetic number, because the mean of its divisors is an integer number (6606711559).

Almost surely, 2^13213423117 is an apocalyptic number.

It is an amenable number.

13213423117 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213423117 is an equidigital number, since it uses as much as digits as its factorization.

13213423117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

Adding to 13213423117 its reverse (71132431231), we get a palindrome (84345854348).

The spelling of 13213423117 in words is "thirteen billion, two hundred thirteen million, four hundred twenty-three thousand, one hundred seventeen".