13115213211 has 16 divisors (see below), whose sum is σ = 17702657280. Its totient is φ = 8635682400.

The previous prime is 13115213173. The next prime is 13115213231. The reversal of 13115213211 is 11231251131.

It is a de Polignac number, because none of the positive numbers 2^k-13115213211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13115213231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414930 + ... + 1424168.

It is an arithmetic number, because the mean of its divisors is an integer number (1106416080).

Almost surely, 2^13115213211 is an apocalyptic number.

13115213211 is a deficient number, since it is larger than the sum of its proper divisors (4587444069).

13115213211 is an equidigital number, since it uses as much as digits as its factorization.

13115213211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15026.

The product of its digits is 180, while the sum is 21.

Adding to 13115213211 its reverse (11231251131), we get a palindrome (24346464342).

The spelling of 13115213211 in words is "thirteen billion, one hundred fifteen million, two hundred thirteen thousand, two hundred eleven".