320330423 has 8 divisors (see below), whose sum is σ = 375986592. Its totient is φ = 267147936.

The previous prime is 320330419. The next prime is 320330441. The reversal of 320330423 is 324033023.

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 320330423 - 2² = 320330419 is a prime.

It is a super-2 number, since 2×320330423² = 205223159798717858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320330395 and 320330404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320330323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618140 + ... + 618657.

It is an arithmetic number, because the mean of its divisors is an integer number (46998324).

Almost surely, 2^320330423 is an apocalyptic number.

320330423 is a deficient number, since it is larger than the sum of its proper divisors (55656169).

320330423 is a wasteful number, since it uses less digits than its factorization.

320330423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236841.

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 320330423 is about 17897.7770407389. Note that the first 3 decimals coincide. The cubic root of 320330423 is about 684.2257207626.

Adding to 320330423 its reverse (324033023), we get a palindrome (644363446).

The spelling of 320330423 in words is "three hundred twenty million, three hundred thirty thousand, four hundred twenty-three".