320000203 has 8 divisors (see below), whose sum is σ = 328070736. Its totient is φ = 312128080.

The previous prime is 320000201. The next prime is 320000221. The reversal of 320000203 is 302000023.

It is not a de Polignac number, because 320000203 - 2¹ = 320000201 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 320000203.

It is not an unprimeable number, because it can be changed into a prime (320000201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66600 + ... + 71242.

It is an arithmetic number, because the mean of its divisors is an integer number (41008842).

Almost surely, 2^320000203 is an apocalyptic number.

320000203 is a deficient number, since it is larger than the sum of its proper divisors (8070533).

320000203 is an frugal number, since it uses more digits than its factorization.

320000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766 (or 4684 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 320000203 is about 17888.5494940199. The cubic root of 320000203 is about 683.9905233061.

Adding to 320000203 its reverse (302000023), we get a palindrome (622000226).

It can be divided in two parts, 32000020 and 3, that added together give a palindrome (32000023).

The spelling of 320000203 in words is "three hundred twenty million, two hundred three", and thus it is an aban number.