20001110001 has 4 divisors (see below), whose sum is σ = 26668146672. Its totient is φ = 13334073332.

The previous prime is 20001109993. The next prime is 20001110023. The reversal of 20001110001 is 10001110002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20001110001 - 2³ = 20001109993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20001117001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333518331 + ... + 3333518336.

It is an arithmetic number, because the mean of its divisors is an integer number (6667036668).

Almost surely, 2^20001110001 is an apocalyptic number.

It is an amenable number.

20001110001 is a deficient number, since it is larger than the sum of its proper divisors (6667036671).

20001110001 is an equidigital number, since it uses as much as digits as its factorization.

20001110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667036670.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 20001110001 its reverse (10001110002), we get a palindrome (30002220003).

Subtracting from 20001110001 its reverse (10001110002), we obtain a palindrome (9999999999).

It can be divided in two parts, 200011 and 10001, that added together give a palindrome (210012).

The spelling of 20001110001 in words is "twenty billion, one million, one hundred ten thousand, one".