203203221103 has 4 divisors (see below), whose sum is σ = 204665114920. Its totient is φ = 201741327288.

The previous prime is 203203221077. The next prime is 203203221131. The reversal of 203203221103 is 301122302302.

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 203203221103 - 2³⁷ = 65764267631 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 (203203221503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730946700 + ... + 730946977.

It is an arithmetic number, because the mean of its divisors is an integer number (51166278730).

Almost surely, 2^203203221103 is an apocalyptic number.

203203221103 is a deficient number, since it is larger than the sum of its proper divisors (1461893817).

203203221103 is a wasteful number, since it uses less digits than its factorization.

203203221103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461893816.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203203221103 its reverse (301122302302), we get a palindrome (504325523405).

It can be divided in two parts, 20320 and 3221103, that added together give a palindrome (3241423).

The spelling of 203203221103 in words is "two hundred three billion, two hundred three million, two hundred twenty-one thousand, one hundred three".