2003123203 has 8 divisors (see below), whose sum is σ = 2129429520. Its totient is φ = 1878904800.

The previous prime is 2003123191. The next prime is 2003123207. The reversal of 2003123203 is 3023213002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2003123203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003123207) 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, 520000 + ... + 523837.

It is an arithmetic number, because the mean of its divisors is an integer number (266178690).

Almost surely, 2^2003123203 is an apocalyptic number.

2003123203 is a deficient number, since it is larger than the sum of its proper divisors (126306317).

2003123203 is a wasteful number, since it uses less digits than its factorization.

2003123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043957.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2003123203 is about 44756.2643995229. The cubic root of 2003123203 is about 1260.5765403420.

Adding to 2003123203 its reverse (3023213002), we get a palindrome (5026336205).

It can be divided in two parts, 20031 and 23203, that added together give a palindrome (43234).

The spelling of 2003123203 in words is "two billion, three million, one hundred twenty-three thousand, two hundred three".