203103023203 has 24 divisors (see below), whose sum is σ = 222383878992. Its totient is φ = 185345900544.

The previous prime is 203103023197. The next prime is 203103023243. The reversal of 203103023203 is 302320301302.

It is a happy number.

It is not a de Polignac number, because 203103023203 - 2⁹ = 203103022691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203103023243) 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, 1642851 + ... + 1762147.

It is an arithmetic number, because the mean of its divisors is an integer number (9265994958).

Almost surely, 2^203103023203 is an apocalyptic number.

203103023203 is a deficient number, since it is larger than the sum of its proper divisors (19280855789).

203103023203 is a wasteful number, since it uses less digits than its factorization.

203103023203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119511 (or 119494 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 203103023203 its reverse (302320301302), we get a palindrome (505423324505).

The spelling of 203103023203 in words is "two hundred three billion, one hundred three million, twenty-three thousand, two hundred three".