20104401001 has 4 divisors (see below), whose sum is σ = 20104701652. Its totient is φ = 20104100352.

The previous prime is 20104400999. The next prime is 20104401043. The reversal of 20104401001 is 10010440102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14262091776 + 5842309225 = 119424^2 + 76435^2 .

It is a cyclic number.

It is not a de Polignac number, because 20104401001 - 2¹ = 20104400999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20104401071) 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, 265 + ... + 200521.

It is an arithmetic number, because the mean of its divisors is an integer number (5026175413).

Almost surely, 2^20104401001 is an apocalyptic number.

It is an amenable number.

20104401001 is a deficient number, since it is larger than the sum of its proper divisors (300651).

20104401001 is a wasteful number, since it uses less digits than its factorization.

20104401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300650.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20104401001 its reverse (10010440102), we get a palindrome (30114841103).

The spelling of 20104401001 in words is "twenty billion, one hundred four million, four hundred one thousand, one".