223321312 has 24 divisors (see below), whose sum is σ = 440026776. Its totient is φ = 111568512.

The previous prime is 223321309. The next prime is 223321321. The reversal of 223321312 is 213123322.

It is a self number, because there is not a number n which added to its sum of digits gives 223321312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53443 + ... + 57469.

It is an arithmetic number, because the mean of its divisors is an integer number (18334449).

Almost surely, 2^223321312 is an apocalyptic number.

It is an amenable number.

223321312 is a deficient number, since it is larger than the sum of its proper divisors (216705464).

223321312 is a wasteful number, since it uses less digits than its factorization.

223321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770 (or 5762 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 223321312 is about 14943.9389720381. The cubic root of 223321312 is about 606.7038118114.

Adding to 223321312 its reverse (213123322), we get a palindrome (436444634).

The spelling of 223321312 in words is "two hundred twenty-three million, three hundred twenty-one thousand, three hundred twelve".