2003203103 has 4 divisors (see below), whose sum is σ = 2185312488. Its totient is φ = 1821093720.

The previous prime is 2003203049. The next prime is 2003203129. The reversal of 2003203103 is 3013023002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2003203103 - 2¹⁴ = 2003186719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003203903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91054676 + ... + 91054697.

It is an arithmetic number, because the mean of its divisors is an integer number (546328122).

Almost surely, 2^2003203103 is an apocalyptic number.

2003203103 is a deficient number, since it is larger than the sum of its proper divisors (182109385).

2003203103 is a wasteful number, since it uses less digits than its factorization.

2003203103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182109384.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 2003203103 is about 44757.1570030984. The cubic root of 2003203103 is about 1260.5933006236.

Adding to 2003203103 its reverse (3013023002), we get a palindrome (5016226105).

The spelling of 2003203103 in words is "two billion, three million, two hundred three thousand, one hundred three".