111101120020011 has 16 divisors (see below), whose sum is σ = 161608455514368. Its totient is φ = 67331167802400.

The previous prime is 111101120019997. The next prime is 111101120020061. The reversal of 111101120020011 is 110020021101111.

It is not a de Polignac number, because 111101120020011 - 2⁵ = 111101120019979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111101120020061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70315095 + ... + 71877776.

It is an arithmetic number, because the mean of its divisors is an integer number (10100528469648).

Almost surely, 2^{111101120020011} is an apocalyptic number.

111101120020011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111101120020011 is a deficient number, since it is larger than the sum of its proper divisors (50507335494357).

111101120020011 is a wasteful number, since it uses less digits than its factorization.

111101120020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142216562.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111101120020011 its reverse (110020021101111), we get a palindrome (221121141121122).

The spelling of 111101120020011 in words is "one hundred eleven trillion, one hundred one billion, one hundred twenty million, twenty thousand, eleven".