13324121212231 has 4 divisors (see below), whose sum is σ = 13342298731672. Its totient is φ = 13305943692792.

The previous prime is 13324121212219. The next prime is 13324121212247. The reversal of 13324121212231 is 13221212142331.

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 13324121212231 - 2¹³ = 13324121204039 is a prime.

It is a super-2 number, since 2×13324121212231² (a number of 27 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 13324121212231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13324121212211) 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, 9088758621 + ... + 9088760086.

It is an arithmetic number, because the mean of its divisors is an integer number (3335574682918).

Almost surely, 2^{13324121212231} is an apocalyptic number.

13324121212231 is a deficient number, since it is larger than the sum of its proper divisors (18177519441).

13324121212231 is an equidigital number, since it uses as much as digits as its factorization.

13324121212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18177519440.

The product of its digits is 3456, while the sum is 28.

Adding to 13324121212231 its reverse (13221212142331), we get a palindrome (26545333354562).

The spelling of 13324121212231 in words is "thirteen trillion, three hundred twenty-four billion, one hundred twenty-one million, two hundred twelve thousand, two hundred thirty-one".