321223 has 8 divisors (see below), whose sum is σ = 371360. Its totient is φ = 272160.

The previous prime is 321221. The next prime is 321227. The reversal of 321223 is 322123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321223 - 2¹ = 321221 is a prime.

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.

It is not an unprimeable number, because it can be changed into a prime (321221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553 + ... + 973.

It is an arithmetic number, because the mean of its divisors is an integer number (46420).

2³²¹²²³ is an apocalyptic number.

321223 is a deficient number, since it is larger than the sum of its proper divisors (50137).

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 product of its digits is 72, while the sum is 13.

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.