13443423111 has 24 divisors (see below), whose sum is σ = 20606002560. Its totient is φ = 8427311376.

The previous prime is 13443423089. The next prime is 13443423131. The reversal of 13443423111 is 11132434431.

13443423111 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 342 + 311 + 1 = 666.

It is not a de Polignac number, because 13443423111 - 2¹⁷ = 13443292039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443423131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 538161 + ... + 562586.

It is an arithmetic number, because the mean of its divisors is an integer number (858583440).

Almost surely, 2^13443423111 is an apocalyptic number.

13443423111 is a deficient number, since it is larger than the sum of its proper divisors (7162579449).

13443423111 is a wasteful number, since it uses less digits than its factorization.

13443423111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100835 (or 1100832 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 13443423111 its reverse (11132434431), we get a palindrome (24575857542).

The spelling of 13443423111 in words is "thirteen billion, four hundred forty-three million, four hundred twenty-three thousand, one hundred eleven".