13213223111 has 6 divisors (see below), whose sum is σ = 14523625536. Its totient is φ = 12012020900.

The previous prime is 13213223087. The next prime is 13213223117. The reversal of 13213223111 is 11132231231.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-13213223111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213223117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54599975 + ... + 54600216.

It is an arithmetic number, because the mean of its divisors is an integer number (2420604256).

Almost surely, 2^13213223111 is an apocalyptic number.

13213223111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13213223111 is a deficient number, since it is larger than the sum of its proper divisors (1310402425).

13213223111 is a wasteful number, since it uses less digits than its factorization.

13213223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109200213 (or 109200202 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 13213223111 its reverse (11132231231), we get a palindrome (24345454342).

The spelling of 13213223111 in words is "thirteen billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred eleven".