204512103 has 6 divisors (see below), whose sum is σ = 295406384. Its totient is φ = 136341396.

The previous prime is 204512071. The next prime is 204512149. The reversal of 204512103 is 301215402.

204512103 is a `hidden beast` number, since 2 + 0 + 451 + 210 + 3 = 666.

204512103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204512103 - 2⁵ = 204512071 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 (204512153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11361775 + ... + 11361792.

Almost surely, 2^204512103 is an apocalyptic number.

204512103 is a deficient number, since it is larger than the sum of its proper divisors (90894281).

204512103 is a wasteful number, since it uses less digits than its factorization.

204512103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22723573 (or 22723570 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 204512103 is about 14300.7728112854. The cubic root of 204512103 is about 589.1687067113.

Adding to 204512103 its reverse (301215402), we get a palindrome (505727505).

The spelling of 204512103 in words is "two hundred four million, five hundred twelve thousand, one hundred three".