320013003 has 8 divisors (see below), whose sum is σ = 426952768. Its totient is φ = 213207624.

The previous prime is 320012983. The next prime is 320013017. The reversal of 320013003 is 300310023.

It is a happy number.

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

It is not a de Polignac number, because 320013003 - 2⁹ = 320012491 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 320013003.

It is not an unprimeable number, because it can be changed into a prime (320014003) 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, 27901 + ... + 37662.

It is an arithmetic number, because the mean of its divisors is an integer number (53369096).

Almost surely, 2^320013003 is an apocalyptic number.

320013003 is a deficient number, since it is larger than the sum of its proper divisors (106939765).

320013003 is a wasteful number, since it uses less digits than its factorization.

320013003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67193.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 320013003 is about 17888.9072612052. The cubic root of 320013003 is about 683.9996430524. Note that the first 3 decimals are identical.

Adding to 320013003 its reverse (300310023), we get a palindrome (620323026).

The spelling of 320013003 in words is "three hundred twenty million, thirteen thousand, three".