2004123 has 12 divisors (see below), whose sum is σ = 2937704. Its totient is φ = 1214400.

The previous prime is 2004109. The next prime is 2004131. The reversal of 2004123 is 3214002.

It is not a de Polignac number, because 2004123 - 2⁵ = 2004091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2004099 and 2004108.

It is not an unprimeable number, because it can be changed into a prime (2004133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2398 + ... + 3123.

2^2004123 is an apocalyptic number.

2004123 is a deficient number, since it is larger than the sum of its proper divisors (933581).

2004123 is a wasteful number, since it uses less digits than its factorization.

2004123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5546 (or 5535 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2004123 is about 1415.6705125134. The cubic root of 2004123 is about 126.0786231391.

Adding to 2004123 its reverse (3214002), we get a palindrome (5218125).

The spelling of 2004123 in words is "two million, four thousand, one hundred twenty-three".