323040321 has 12 divisors (see below), whose sum is σ = 466769680. Its totient is φ = 215288280.

The previous prime is 323040317. The next prime is 323040331. The reversal of 323040321 is 123040323.

It is not a de Polignac number, because 323040321 - 2² = 323040317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323040294 and 323040303.

It is not an unprimeable number, because it can be changed into a prime (323040331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48906 + ... + 55116.

Almost surely, 2^323040321 is an apocalyptic number.

It is an amenable number.

323040321 is a deficient number, since it is larger than the sum of its proper divisors (143729359).

323040321 is a wasteful number, since it uses less digits than its factorization.

323040321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11996 (or 11993 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 323040321 is about 17973.3224808325. The cubic root of 323040321 is about 686.1497525438.

Adding to 323040321 its reverse (123040323), we get a palindrome (446080644).

The spelling of 323040321 in words is "three hundred twenty-three million, forty thousand, three hundred twenty-one".