323220403 has 12 divisors (see below), whose sum is σ = 370725264. Its totient is φ = 281058800.

The previous prime is 323220319. The next prime is 323220413. The reversal of 323220403 is 304022323.

It is not a de Polignac number, because 323220403 - 2⁹ = 323219891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323220413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55288 + ... + 60853.

It is an arithmetic number, because the mean of its divisors is an integer number (30893772).

Almost surely, 2^323220403 is an apocalyptic number.

323220403 is a deficient number, since it is larger than the sum of its proper divisors (47504861).

323220403 is a wasteful number, since it uses less digits than its factorization.

323220403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116186 (or 116175 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 323220403 is about 17978.3314854299. The cubic root of 323220403 is about 686.2772291654.

Adding to 323220403 its reverse (304022323), we get a palindrome (627242726).

The spelling of 323220403 in words is "three hundred twenty-three million, two hundred twenty thousand, four hundred three".