2004401123 has 4 divisors (see below), whose sum is σ = 2006346288. Its totient is φ = 2002455960.

The previous prime is 2004401107. The next prime is 2004401137. The reversal of 2004401123 is 3211044002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2004401123 - 2⁴ = 2004401107 is a prime.

It is a super-2 number, since 2×2004401123² = 8035247723767322258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2004401173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971036 + ... + 973097.

It is an arithmetic number, because the mean of its divisors is an integer number (501586572).

Almost surely, 2^2004401123 is an apocalyptic number.

2004401123 is a deficient number, since it is larger than the sum of its proper divisors (1945165).

2004401123 is a wasteful number, since it uses less digits than its factorization.

2004401123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945164.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2004401123 is about 44770.5385605311. The cubic root of 2004401123 is about 1260.8445507374.

Adding to 2004401123 its reverse (3211044002), we get a palindrome (5215445125).

The spelling of 2004401123 in words is "two billion, four million, four hundred one thousand, one hundred twenty-three".