321324023 has 4 divisors (see below), whose sum is σ = 321651888. Its totient is φ = 320996160.

The previous prime is 321323999. The next prime is 321324037. The reversal of 321324023 is 320423123.

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 321324023 - 2⁸ = 321323767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321323986 and 321324004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321324323) 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, 162458 + ... + 164423.

It is an arithmetic number, because the mean of its divisors is an integer number (80412972).

Almost surely, 2^321324023 is an apocalyptic number.

321324023 is a deficient number, since it is larger than the sum of its proper divisors (327865).

321324023 is an equidigital number, since it uses as much as digits as its factorization.

321324023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327864.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 321324023 is about 17925.5131865171. The cubic root of 321324023 is about 684.9324337072.

Adding to 321324023 its reverse (320423123), we get a palindrome (641747146).

The spelling of 321324023 in words is "three hundred twenty-one million, three hundred twenty-four thousand, twenty-three".