320233421 has 8 divisors (see below), whose sum is σ = 323251200. Its totient is φ = 317223648.

The previous prime is 320233363. The next prime is 320233447. The reversal of 320233421 is 124332023.

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

It is not a de Polignac number, because 320233421 - 2⁶ = 320233357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320233393 and 320233402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320233451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103505 + ... + 106553.

It is an arithmetic number, because the mean of its divisors is an integer number (40406400).

Almost surely, 2^320233421 is an apocalyptic number.

It is an amenable number.

320233421 is a deficient number, since it is larger than the sum of its proper divisors (3017779).

320233421 is a wasteful number, since it uses less digits than its factorization.

320233421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003.

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

The square root of 320233421 is about 17895.0669459491. The cubic root of 320233421 is about 684.1566483724.

Adding to 320233421 its reverse (124332023), we get a palindrome (444565444).

The spelling of 320233421 in words is "three hundred twenty million, two hundred thirty-three thousand, four hundred twenty-one".