204103302123 has 8 divisors (see below), whose sum is σ = 311014555648. Its totient is φ = 116630458344.

The previous prime is 204103302061. The next prime is 204103302133. The reversal of 204103302123 is 321203301402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204103302123 - 2¹⁰ = 204103301099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9719204863 = 204103302123 / (2 + 0 + 4 + 1 + 0 + 3 + 3 + 0 + 2 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204103302123.

It is not an unprimeable number, because it can be changed into a prime (204103302133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4859602411 + ... + 4859602452.

It is an arithmetic number, because the mean of its divisors is an integer number (38876819456).

Almost surely, 2^204103302123 is an apocalyptic number.

204103302123 is a deficient number, since it is larger than the sum of its proper divisors (106911253525).

204103302123 is an equidigital number, since it uses as much as digits as its factorization.

204103302123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9719204873.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 204103302123 its reverse (321203301402), we get a palindrome (525306603525).

The spelling of 204103302123 in words is "two hundred four billion, one hundred three million, three hundred two thousand, one hundred twenty-three".