20000110001 has 4 divisors (see below), whose sum is σ = 20487917604. Its totient is φ = 19512302400.

The previous prime is 20000109989. The next prime is 20000110007. The reversal of 20000110001 is 10001100002.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8885890225 + 11114219776 = 94265^2 + 105424^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000110001 - 2¹⁰ = 20000108977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000110007) 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, 243903740 + ... + 243903821.

It is an arithmetic number, because the mean of its divisors is an integer number (5121979401).

Almost surely, 2^20000110001 is an apocalyptic number.

It is an amenable number.

20000110001 is a deficient number, since it is larger than the sum of its proper divisors (487807603).

20000110001 is an equidigital number, since it uses as much as digits as its factorization.

20000110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487807602.

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 20000110001 its reverse (10001100002), we get a palindrome (30001210003).

Subtracting from 20000110001 its reverse (10001100002), we obtain a palindrome (9999009999).

The spelling of 20000110001 in words is "twenty billion, one hundred ten thousand, one".