2004401113421 has 16 divisors (see below), whose sum is σ = 2303442617088. Its totient is φ = 1708540646400.

The previous prime is 2004401113391. The next prime is 2004401113439. The reversal of 2004401113421 is 1243111044002.

It is not a de Polignac number, because 2004401113421 - 2¹⁰ = 2004401112397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004401113471) 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, 3504851 + ... + 4036431.

It is an arithmetic number, because the mean of its divisors is an integer number (143965163568).

Almost surely, 2^{2004401113421} is an apocalyptic number.

It is an amenable number.

2004401113421 is a deficient number, since it is larger than the sum of its proper divisors (299041503667).

2004401113421 is a wasteful number, since it uses less digits than its factorization.

2004401113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534572.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 2004401113421 its reverse (1243111044002), we get a palindrome (3247512157423).

The spelling of 2004401113421 in words is "two trillion, four billion, four hundred one million, one hundred thirteen thousand, four hundred twenty-one".