204123621146103 has 6 divisors (see below), whose sum is σ = 294845230544384. Its totient is φ = 136082414097396.

The previous prime is 204123621146089. The next prime is 204123621146129. The reversal of 204123621146103 is 301641126321402.

204123621146103 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 2 + 3 + 6 + 21 + 14 + 610 + 3 = 666.

It is not a de Polignac number, because 204123621146103 - 2²⁸ = 204123352710647 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 (204123621146503) 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, 11340201174775 + ... + 11340201174792.

Almost surely, 2^{204123621146103} is an apocalyptic number.

204123621146103 is a deficient number, since it is larger than the sum of its proper divisors (90721609398281).

204123621146103 is a wasteful number, since it uses less digits than its factorization.

204123621146103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22680402349573 (or 22680402349570 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 204123621146103 its reverse (301641126321402), we get a palindrome (505764747467505).

The spelling of 204123621146103 in words is "two hundred four trillion, one hundred twenty-three billion, six hundred twenty-one million, one hundred forty-six thousand, one hundred three".