2004013123 has 12 divisors (see below), whose sum is σ = 2337823080. Its totient is φ = 1712844672.

The previous prime is 2004013111. The next prime is 2004013153. The reversal of 2004013123 is 3213104002.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2004013123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2004013097 and 2004013106.

It is not an unprimeable number, because it can be changed into a prime (2004013103) 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, 40633 + ... + 75226.

It is an arithmetic number, because the mean of its divisors is an integer number (194818590).

Almost surely, 2^2004013123 is an apocalyptic number.

2004013123 is a deficient number, since it is larger than the sum of its proper divisors (333809957).

2004013123 is a wasteful number, since it uses less digits than its factorization.

2004013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116226 (or 116219 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2004013123 is about 44766.2051440593. The cubic root of 2004013123 is about 1260.7631899011.

Adding to 2004013123 its reverse (3213104002), we get a palindrome (5217117125).

The spelling of 2004013123 in words is "two billion, four million, thirteen thousand, one hundred twenty-three".