323221120 has 32 divisors (see below), whose sum is σ = 772702020. Its totient is φ = 129288192.

The previous prime is 323221117. The next prime is 323221133. The reversal of 323221120 is 21122323.

It can be written as a sum of positive squares in 2 ways, for example, as 307791936 + 15429184 = 17544^2 + 3928^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 323221094 and 323221103.

It is an unprimeable number.

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, 251877 + ... + 253156.

Almost surely, 2^323221120 is an apocalyptic number.

It is an amenable number.

323221120 is an abundant number, since it is smaller than the sum of its proper divisors (449480900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

323221120 is an equidigital number, since it uses as much as digits as its factorization.

323221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505052 (or 505040 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 323221120 is about 17978.3514260902. The cubic root of 323221120 is about 686.2777366215.

Adding to 323221120 its reverse (21122323), we get a palindrome (344343443).

The spelling of 323221120 in words is "three hundred twenty-three million, two hundred twenty-one thousand, one hundred twenty".