16323 has 4 divisors (see below), whose sum is σ = 21768. Its totient is φ = 10880.

The previous prime is 16319. The next prime is 16333. The reversal of 16323 is 32361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16323 - 2² = 16319 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 11.

It is a nialpdrome in base 12.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (16333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2718 + ... + 2723.

It is an arithmetic number, because the mean of its divisors is an integer number (5442).

2¹⁶³²³ is an apocalyptic number.

16323 is a deficient number, since it is larger than the sum of its proper divisors (5445).

16323 is an equidigital number, since it uses as much as digits as its factorization.

16323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444.

The product of its digits is 108, while the sum is 15.

The square root of 16323 is about 127.7614965473. The cubic root of 16323 is about 25.3668569728.

Adding to 16323 its reverse (32361), we get a palindrome (48684).

The spelling of 16323 in words is "sixteen thousand, three hundred twenty-three".