2004423511423 has 4 divisors (see below), whose sum is σ = 2023883933968. Its totient is φ = 1984963088880.

The previous prime is 2004423511417. The next prime is 2004423511439. The reversal of 2004423511423 is 3241153244002.

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 2004423511423 - 2³³ = 1995833576831 is a prime.

It is a super-2 number, since 2×2004423511423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004423511403) 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, 9730211118 + ... + 9730211323.

It is an arithmetic number, because the mean of its divisors is an integer number (505970983492).

Almost surely, 2^{2004423511423} is an apocalyptic number.

2004423511423 is a deficient number, since it is larger than the sum of its proper divisors (19460422545).

2004423511423 is a wasteful number, since it uses less digits than its factorization.

2004423511423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19460422544.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 2004423511423 its reverse (3241153244002), we get a palindrome (5245576755425).

The spelling of 2004423511423 in words is "two trillion, four billion, four hundred twenty-three million, five hundred eleven thousand, four hundred twenty-three".