323320121 has 4 divisors (see below), whose sum is σ = 323645412. Its totient is φ = 322994832.

The previous prime is 323320103. The next prime is 323320133. The reversal of 323320121 is 121023323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188760121 + 134560000 = 13739^2 + 11600^2 .

It is a cyclic number.

It is not a de Polignac number, because 323320121 - 2¹⁰ = 323319097 is a prime.

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 323320121.

It is not an unprimeable number, because it can be changed into a prime (323320141) 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, 161150 + ... + 163143.

It is an arithmetic number, because the mean of its divisors is an integer number (80911353).

Almost surely, 2^323320121 is an apocalyptic number.

It is an amenable number.

323320121 is a deficient number, since it is larger than the sum of its proper divisors (325291).

323320121 is an equidigital number, since it uses as much as digits as its factorization.

323320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325290.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 323320121 is about 17981.1045545039. The cubic root of 323320121 is about 686.3477972728.

Adding to 323320121 its reverse (121023323), we get a palindrome (444343444).

The spelling of 323320121 in words is "three hundred twenty-three million, three hundred twenty thousand, one hundred twenty-one".