323312321 has 8 divisors (see below), whose sum is σ = 324782784. Its totient is φ = 321846160.

The previous prime is 323312309. The next prime is 323312333. The reversal of 323312321 is 123213323.

It is an interprime number because it is at equal distance from previous prime (323312309) and next prime (323312333).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 323312321 - 2²² = 319118017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323312293 and 323312302.

It is not an unprimeable number, because it can be changed into a prime (323312351) 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 7 ways as a sum of consecutive naturals, for example, 313076 + ... + 314106.

It is an arithmetic number, because the mean of its divisors is an integer number (40597848).

Almost surely, 2^323312321 is an apocalyptic number.

It is an amenable number.

323312321 is a deficient number, since it is larger than the sum of its proper divisors (1470463).

323312321 is a wasteful number, since it uses less digits than its factorization.

323312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151.

The product of its digits is 648, while the sum is 20.

The square root of 323312321 is about 17980.8876588449. The cubic root of 323312321 is about 686.3422779175.

Adding to 323312321 its reverse (123213323), we get a palindrome (446525644).

The spelling of 323312321 in words is "three hundred twenty-three million, three hundred twelve thousand, three hundred twenty-one".