20000111020011 has 8 divisors (see below), whose sum is σ = 29629794103760. Its totient is φ = 13333407346656.

The previous prime is 20000111020007. The next prime is 20000111020051. The reversal of 20000111020011 is 11002011100002.

It is a happy number.

It is not a de Polignac number, because 20000111020011 - 2² = 20000111020007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000111019975 and 20000111020002.

It is not an unprimeable number, because it can be changed into a prime (20000111020051) 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, 370372426270 + ... + 370372426323.

It is an arithmetic number, because the mean of its divisors is an integer number (3703724262970).

Almost surely, 2^{20000111020011} is an apocalyptic number.

20000111020011 is a deficient number, since it is larger than the sum of its proper divisors (9629683083749).

20000111020011 is an equidigital number, since it uses as much as digits as its factorization.

20000111020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740744852602 (or 740744852596 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20000111020011 its reverse (11002011100002), we get a palindrome (31002122120013).

The spelling of 20000111020011 in words is "twenty trillion, one hundred eleven million, twenty thousand, eleven".