321423 has 8 divisors (see below), whose sum is σ = 451200. Its totient is φ = 202968.

The previous prime is 321413. The next prime is 321427. The reversal of 321423 is 324123.

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

It is not a de Polignac number, because 321423 - 2⁶ = 321359 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321423.

It is not an unprimeable number, because it can be changed into a prime (321427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2763 + ... + 2876.

It is an arithmetic number, because the mean of its divisors is an integer number (56400).

2³²¹⁴²³ is an apocalyptic number.

321423 is a deficient number, since it is larger than the sum of its proper divisors (129777).

321423 is a wasteful number, since it uses less digits than its factorization.

321423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661.

The product of its digits is 144, while the sum is 15.

The square root of 321423 is about 566.9417959544. The cubic root of 321423 is about 68.5002752755.

Adding to 321423 its reverse (324123), we get a palindrome (645546).

The spelling of 321423 in words is "three hundred twenty-one thousand, four hundred twenty-three", and thus it is an iban number.