320331423 has 8 divisors (see below), whose sum is σ = 427824000. Its totient is φ = 213196568.

The previous prime is 320331413. The next prime is 320331433. The reversal of 320331423 is 324133023.

It is an interprime number because it is at equal distance from previous prime (320331413) and next prime (320331433).

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 320331423 - 2²² = 316137119 is a prime.

It is a super-2 number, since 2×320331423² = 205224441122409858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320331423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320331413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87333 + ... + 90926.

It is an arithmetic number, because the mean of its divisors is an integer number (53478000).

Almost surely, 2^320331423 is an apocalyptic number.

320331423 is a deficient number, since it is larger than the sum of its proper divisors (107492577).

320331423 is a wasteful number, since it uses less digits than its factorization.

320331423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178861.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 320331423 is about 17897.8049771473. The cubic root of 320331423 is about 684.2264327618.

Adding to 320331423 its reverse (324133023), we get a palindrome (644464446).

The spelling of 320331423 in words is "three hundred twenty million, three hundred thirty-one thousand, four hundred twenty-three".