20110002012011 has 12 divisors (see below), whose sum is σ = 20469128792112. Its totient is φ = 19757072468304.

The previous prime is 20110002011999. The next prime is 20110002012017. The reversal of 20110002012011 is 11021020001102.

It is a de Polignac number, because none of the positive numbers 2^k-20110002012011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110002011983 and 20110002012001.

It is not an unprimeable number, because it can be changed into a prime (20110002012017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3933866 + ... + 7462928.

It is an arithmetic number, because the mean of its divisors is an integer number (1705760732676).

Almost surely, 2^{20110002012011} is an apocalyptic number.

20110002012011 is a deficient number, since it is larger than the sum of its proper divisors (359126780101).

20110002012011 is an equidigital number, since it uses as much as digits as its factorization.

20110002012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530818 (or 3530759 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110002012011 its reverse (11021020001102), we get a palindrome (31131022013113).

The spelling of 20110002012011 in words is "twenty trillion, one hundred ten billion, two million, twelve thousand, eleven".