13223232231 has 24 divisors (see below), whose sum is σ = 19386471552. Its totient is φ = 8011198800.

The previous prime is 13223232133. The next prime is 13223232257.

13223232231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13223232231 - 2⁹ = 13223231719 is a prime.

It is a super-2 number, since 2×13223232231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223232271) 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, 1449996 + ... + 1459086.

It is an arithmetic number, because the mean of its divisors is an integer number (807769648).

Almost surely, 2^13223232231 is an apocalyptic number.

13223232231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13223232231 is a deficient number, since it is larger than the sum of its proper divisors (6163239321).

13223232231 is a wasteful number, since it uses less digits than its factorization.

13223232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123 (or 13112 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The spelling of 13223232231 in words is "thirteen billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred thirty-one".