11121020020011 has 64 divisors (see below), whose sum is σ = 16501844620800. Its totient is φ = 6605368535040.

The previous prime is 11121020020001. The next prime is 11121020020039. The reversal of 11121020020011 is 11002002012111.

It is not a de Polignac number, because 11121020020011 - 2¹¹ = 11121020017963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121020020001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 384144565 + ... + 384173513.

It is an arithmetic number, because the mean of its divisors is an integer number (257841322200).

Almost surely, 2^{11121020020011} is an apocalyptic number.

11121020020011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121020020011 is a deficient number, since it is larger than the sum of its proper divisors (5380824600789).

11121020020011 is a wasteful number, since it uses less digits than its factorization.

11121020020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29916.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11121020020011 its reverse (11002002012111), we get a palindrome (22123022032122).

The spelling of 11121020020011 in words is "eleven trillion, one hundred twenty-one billion, twenty million, twenty thousand, eleven".