320320423 has 8 divisors (see below), whose sum is σ = 325788848. Its totient is φ = 314881344.

The previous prime is 320320387. The next prime is 320320513. The reversal of 320320423 is 324023023.

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

It is a cyclic number.

It is not a de Polignac number, because 320320423 - 2²¹ = 318223271 is a prime.

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 320320423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320320123) 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, 15265 + ... + 29557.

It is an arithmetic number, because the mean of its divisors is an integer number (40723606).

Almost surely, 2^320320423 is an apocalyptic number.

320320423 is a deficient number, since it is larger than the sum of its proper divisors (5468425).

320320423 is a wasteful number, since it uses less digits than its factorization.

320320423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14673.

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

The square root of 320320423 is about 17897.4976742560. The cubic root of 320320423 is about 684.2186006892.

Adding to 320320423 its reverse (324023023), we get a palindrome (644343446).

The spelling of 320320423 in words is "three hundred twenty million, three hundred twenty thousand, four hundred twenty-three".