320012321003 has 24 divisors (see below), whose sum is σ = 344040256800. Its totient is φ = 297537701760.

The previous prime is 320012320997. The next prime is 320012321011. The reversal of 320012321003 is 300123210023.

It is not a de Polignac number, because 320012321003 - 2⁴ = 320012320987 is a prime.

It is a super-2 number, since 2×320012321003² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320012327003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10047698 + ... + 10079496.

It is an arithmetic number, because the mean of its divisors is an integer number (14335010700).

Almost surely, 2^320012321003 is an apocalyptic number.

320012321003 is a deficient number, since it is larger than the sum of its proper divisors (24027935797).

320012321003 is a wasteful number, since it uses less digits than its factorization.

320012321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32355 (or 32336 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 320012321003 its reverse (300123210023), we get a palindrome (620135531026).

The spelling of 320012321003 in words is "three hundred twenty billion, twelve million, three hundred twenty-one thousand, three".