111000020011 has 4 divisors (see below), whose sum is σ = 111018382272. Its totient is φ = 110981657752.

The previous prime is 111000020009. The next prime is 111000020041. The reversal of 111000020011 is 110020000111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111000020011 - 2¹ = 111000020009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111000019976 and 111000020003.

It is not an unprimeable number, because it can be changed into a prime (111000020041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9172060 + ... + 9184153.

It is an arithmetic number, because the mean of its divisors is an integer number (27754595568).

Almost surely, 2^111000020011 is an apocalyptic number.

111000020011 is a deficient number, since it is larger than the sum of its proper divisors (18362261).

111000020011 is an equidigital number, since it uses as much as digits as its factorization.

111000020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18362260.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 111000020011 its reverse (110020000111), we get a palindrome (221020020122).

The spelling of 111000020011 in words is "one hundred eleven billion, twenty thousand, eleven".