13224442231 has 24 divisors (see below), whose sum is σ = 17890423712. Its totient is φ = 9512078400.

The previous prime is 13224442219. The next prime is 13224442247.

13224442231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13224442231 - 2⁵ = 13224442199 is a prime.

It is a super-2 number, since 2×13224442231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13224442231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224442291) 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, 589500 + ... + 611521.

Almost surely, 2^13224442231 is an apocalyptic number.

13224442231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13224442231 is a deficient number, since it is larger than the sum of its proper divisors (4665981481).

13224442231 is a wasteful number, since it uses less digits than its factorization.

13224442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201063 (or 1201052 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The spelling of 13224442231 in words is "thirteen billion, two hundred twenty-four million, four hundred forty-two thousand, two hundred thirty-one".