204560123 has 8 divisors (see below), whose sum is σ = 205705200. Its totient is φ = 203419008.

The previous prime is 204560117. The next prime is 204560129. The reversal of 204560123 is 321065402.

It is an interprime number because it is at equal distance from previous prime (204560117) and next prime (204560129).

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

It is a cyclic number.

It is not a de Polignac number, because 204560123 - 2⁴ = 204560107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204560129) 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, 180623 + ... + 181751.

It is an arithmetic number, because the mean of its divisors is an integer number (25713150).

Almost surely, 2^204560123 is an apocalyptic number.

204560123 is a deficient number, since it is larger than the sum of its proper divisors (1145077).

204560123 is a wasteful number, since it uses less digits than its factorization.

204560123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 204560123 is about 14302.4516429876. The cubic root of 204560123 is about 589.2148159094.

The spelling of 204560123 in words is "two hundred four million, five hundred sixty thousand, one hundred twenty-three".