323223021 has 16 divisors (see below), whose sum is σ = 522381120. Its totient is φ = 195892560.

The previous prime is 323223013. The next prime is 323223031. The reversal of 323223021 is 120322323.

It is a happy number.

It is not a de Polignac number, because 323223021 - 2³ = 323223013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 323222985 and 323223003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323223031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543850 + ... + 544443.

It is an arithmetic number, because the mean of its divisors is an integer number (32648820).

Almost surely, 2^323223021 is an apocalyptic number.

It is an amenable number.

323223021 is a deficient number, since it is larger than the sum of its proper divisors (199158099).

323223021 is a wasteful number, since it uses less digits than its factorization.

323223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088313 (or 1088307 counting only the distinct ones).

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

The square root of 323223021 is about 17978.4042951537. The cubic root of 323223021 is about 686.2790820486.

Adding to 323223021 its reverse (120322323), we get a palindrome (443545344).

The spelling of 323223021 in words is "three hundred twenty-three million, two hundred twenty-three thousand, twenty-one".