204030103 has 4 divisors (see below), whose sum is σ = 204213880. Its totient is φ = 203846328.

The previous prime is 204030089. The next prime is 204030133. The reversal of 204030103 is 301030402.

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 204030103 - 2⁹ = 204029591 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 (204030133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90213 + ... + 92446.

It is an arithmetic number, because the mean of its divisors is an integer number (51053470).

Almost surely, 2^204030103 is an apocalyptic number.

204030103 is a deficient number, since it is larger than the sum of its proper divisors (183777).

204030103 is a wasteful number, since it uses less digits than its factorization.

204030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183776.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 204030103 is about 14283.9106339966. The cubic root of 204030103 is about 588.7054860316.

Adding to 204030103 its reverse (301030402), we get a palindrome (505060505).

The spelling of 204030103 in words is "two hundred four million, thirty thousand, one hundred three".