2011020011 has 16 divisors (see below), whose sum is σ = 2700112128. Its totient is φ = 1446487200.

The previous prime is 2011020007. The next prime is 2011020017. The reversal of 2011020011 is 1100201102.

It is a cyclic number.

It is not a de Polignac number, because 2011020011 - 2² = 2011020007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011020017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003505 + ... + 1005506.

It is an arithmetic number, because the mean of its divisors is an integer number (168757008).

Almost surely, 2^2011020011 is an apocalyptic number.

2011020011 is a deficient number, since it is larger than the sum of its proper divisors (689092117).

2011020011 is a wasteful number, since it uses less digits than its factorization.

2011020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009042.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2011020011 is about 44844.3977660532. The cubic root of 2011020011 is about 1262.2308700062.

Adding to 2011020011 its reverse (1100201102), we get a palindrome (3111221113).

The spelling of 2011020011 in words is "two billion, eleven million, twenty thousand, eleven".