20001000000011 has 8 divisors (see below), whose sum is σ = 20112071781984. Its totient is φ = 19889934471360.

The previous prime is 20000999999989. The next prime is 20001000000041. The reversal of 20001000000011 is 11000000010002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20001000000011 - 2⁶ = 20000999999947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000999999941 and 20001000000004.

It is not an unprimeable number, because it can be changed into a prime (20001000000041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4925930 + ... + 8016656.

It is an arithmetic number, because the mean of its divisors is an integer number (2514008972748).

Almost surely, 2^{20001000000011} is an apocalyptic number.

20001000000011 is a deficient number, since it is larger than the sum of its proper divisors (111071781973).

20001000000011 is a wasteful number, since it uses less digits than its factorization.

20001000000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126661.

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

Adding to 20001000000011 its reverse (11000000010002), we get a palindrome (31001000010013).

Subtracting from 20001000000011 its reverse (11000000010002), we obtain a palindrome (9000999990009).

The spelling of 20001000000011 in words is "twenty trillion, one billion, eleven", and thus it is an aban number and an uban number.