201111001020011 has 48 divisors (see below), whose sum is σ = 216039008632320. Its totient is φ = 187148480158080.

The previous prime is 201111001019941. The next prime is 201111001020071. The reversal of 201111001020011 is 110020100111102.

It is not a de Polignac number, because 201111001020011 - 2¹⁸ = 201111000757867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201111001019974 and 201111001020001.

It is not an unprimeable number, because it can be changed into a prime (201111001020071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10701368831 + ... + 10701387623.

It is an arithmetic number, because the mean of its divisors is an integer number (4500812679840).

Almost surely, 2^{201111001020011} is an apocalyptic number.

201111001020011 is a deficient number, since it is larger than the sum of its proper divisors (14928007612309).

201111001020011 is a wasteful number, since it uses less digits than its factorization.

201111001020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20424 (or 20405 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201111001020011 its reverse (110020100111102), we get a palindrome (311131101131113).

The spelling of 201111001020011 in words is "two hundred one trillion, one hundred eleven billion, one million, twenty thousand, eleven".