324136321 has 4 divisors (see below), whose sum is σ = 324358144. Its totient is φ = 323914500.

The previous prime is 324136291. The next prime is 324136327. The reversal of 324136321 is 123631423.

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.

It is a cyclic number.

It is not a de Polignac number, because 324136321 - 2⁹ = 324135809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324136327) 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, 108705 + ... + 111646.

It is an arithmetic number, because the mean of its divisors is an integer number (81089536).

Almost surely, 2^324136321 is an apocalyptic number.

It is an amenable number.

324136321 is a deficient number, since it is larger than the sum of its proper divisors (221823).

324136321 is a wasteful number, since it uses less digits than its factorization.

324136321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221822.

The product of its digits is 2592, while the sum is 25.

The square root of 324136321 is about 18003.7862962211. The cubic root of 324136321 is about 686.9248583159.

Adding to 324136321 its reverse (123631423), we get a palindrome (447767744).

The spelling of 324136321 in words is "three hundred twenty-four million, one hundred thirty-six thousand, three hundred twenty-one".