204288123 has 16 divisors (see below), whose sum is σ = 293672736. Its totient is φ = 125571840.

The previous prime is 204288113. The next prime is 204288131. The reversal of 204288123 is 321882402.

204288123 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 204288123 - 2⁴ = 204288107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204288103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38911 + ... + 43847.

It is an arithmetic number, because the mean of its divisors is an integer number (18354546).

Almost surely, 2^204288123 is an apocalyptic number.

204288123 is a deficient number, since it is larger than the sum of its proper divisors (89384613).

204288123 is a wasteful number, since it uses less digits than its factorization.

204288123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 204288123 is about 14292.9396206659. The cubic root of 204288123 is about 588.9535438775.

The spelling of 204288123 in words is "two hundred four million, two hundred eighty-eight thousand, one hundred twenty-three".