13613238211 has 2 divisors, whose sum is σ = 13613238212. Its totient is φ = 13613238210.

The previous prime is 13613238169. The next prime is 13613238263. The reversal of 13613238211 is 11283231631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13613238211 - 2⁹ = 13613237699 is a prime.

It is not a weakly prime, because it can be changed into another prime (13613238271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6806619105 + 6806619106.

It is an arithmetic number, because the mean of its divisors is an integer number (6806619106).

Almost surely, 2^13613238211 is an apocalyptic number.

13613238211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13613238211 is an equidigital number, since it uses as much as digits as its factorization.

13613238211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

Adding to 13613238211 its reverse (11283231631), we get a palindrome (24896469842).

The spelling of 13613238211 in words is "thirteen billion, six hundred thirteen million, two hundred thirty-eight thousand, two hundred eleven".