320032423 has 4 divisors (see below), whose sum is σ = 320449360. Its totient is φ = 319615488.

The previous prime is 320032417. The next prime is 320032439. The reversal of 320032423 is 324230023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320032423 is a prime.

It is a super-3 number, since 3×320032423³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320032423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320032403) 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, 207315 + ... + 208852.

It is an arithmetic number, because the mean of its divisors is an integer number (80112340).

Almost surely, 2^320032423 is an apocalyptic number.

320032423 is a deficient number, since it is larger than the sum of its proper divisors (416937).

320032423 is an equidigital number, since it uses as much as digits as its factorization.

320032423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416936.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 320032423 is about 17889.4500474442. The cubic root of 320032423 is about 684.0134789531.

Adding to 320032423 its reverse (324230023), we get a palindrome (644262446).

The spelling of 320032423 in words is "three hundred twenty million, thirty-two thousand, four hundred twenty-three".