13324144231 has 4 divisors (see below), whose sum is σ = 14025415000. Its totient is φ = 12622873464.

The previous prime is 13324144219. The next prime is 13324144313. The reversal of 13324144231 is 13244142331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13324144231 - 2²⁵ = 13290589799 is a prime.

It is a super-2 number, since 2×13324144231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13324144231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13324144201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350635356 + ... + 350635393.

It is an arithmetic number, because the mean of its divisors is an integer number (3506353750).

Almost surely, 2^13324144231 is an apocalyptic number.

13324144231 is a deficient number, since it is larger than the sum of its proper divisors (701270769).

13324144231 is an equidigital number, since it uses as much as digits as its factorization.

13324144231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701270768.

The product of its digits is 6912, while the sum is 28.

Adding to 13324144231 its reverse (13244142331), we get a palindrome (26568286562).

The spelling of 13324144231 in words is "thirteen billion, three hundred twenty-four million, one hundred forty-four thousand, two hundred thirty-one".