324113221 has 4 divisors (see below), whose sum is σ = 328216000. Its totient is φ = 320010444.

The previous prime is 324113213. The next prime is 324113233. The reversal of 324113221 is 122311423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122311423 = 13 ⋅9408571.

It is a cyclic number.

It is not a de Polignac number, because 324113221 - 2³ = 324113213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324113201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051271 + ... + 2051428.

It is an arithmetic number, because the mean of its divisors is an integer number (82054000).

Almost surely, 2^324113221 is an apocalyptic number.

It is an amenable number.

324113221 is a deficient number, since it is larger than the sum of its proper divisors (4102779).

324113221 is an equidigital number, since it uses as much as digits as its factorization.

324113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102778.

The product of its digits is 288, while the sum is 19.

The square root of 324113221 is about 18003.1447530702. The cubic root of 324113221 is about 686.9085397279.

Adding to 324113221 its reverse (122311423), we get a palindrome (446424644).

The spelling of 324113221 in words is "three hundred twenty-four million, one hundred thirteen thousand, two hundred twenty-one".