13223131111 has 8 divisors (see below), whose sum is σ = 14242785920. Its totient is φ = 12235846392.

The previous prime is 13223131109. The next prime is 13223131147. The reversal of 13223131111 is 11113132231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13223131111 - 2¹ = 13223131109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8091675 + ... + 8093308.

It is an arithmetic number, because the mean of its divisors is an integer number (1780348240).

Almost surely, 2^13223131111 is an apocalyptic number.

13223131111 is a deficient number, since it is larger than the sum of its proper divisors (1019654809).

13223131111 is a wasteful number, since it uses less digits than its factorization.

13223131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16185045.

The product of its digits is 108, while the sum is 19.

Adding to 13223131111 its reverse (11113132231), we get a palindrome (24336263342).

The spelling of 13223131111 in words is "thirteen billion, two hundred twenty-three million, one hundred thirty-one thousand, one hundred eleven".