It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a d-powerful number, because it can be written as 32 + 22 + 24 + 1 + 218 + 310 .
It is a Duffinian number.
It is a congruent number.
2321223 is an apocalyptic number.
321223 is a wasteful number, since it uses less digits than its factorization.
321223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 537.
The square root of 321223 is about 566.7653835583. The cubic root of 321223 is about 68.4860646169.
Adding to 321223 its reverse (322123), we get a palindrome (643346).
Subtracting 321223 from its reverse (322123), we obtain a square (900 = 302).
The spelling of 321223 in words is "three hundred twenty-one thousand, two hundred twenty-three", and thus it is an iban number.