20110000111 has 8 divisors (see below), whose sum is σ = 21979810944. Its totient is φ = 18316508160.

The previous prime is 20110000109. The next prime is 20110000117. The reversal of 20110000111 is 11100001102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110000111 - 2¹ = 20110000109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110000094 and 20110000103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110000117) 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 7 ways as a sum of consecutive naturals, for example, 19079170 + ... + 19080223.

It is an arithmetic number, because the mean of its divisors is an integer number (2747476368).

Almost surely, 2^20110000111 is an apocalyptic number.

20110000111 is a deficient number, since it is larger than the sum of its proper divisors (1869810833).

20110000111 is a wasteful number, since it uses less digits than its factorization.

20110000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38159441.

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

Adding to 20110000111 its reverse (11100001102), we get a palindrome (31210001213).

Subtracting from 20110000111 its reverse (11100001102), we obtain a palindrome (9009999009).

The spelling of 20110000111 in words is "twenty billion, one hundred ten million, one hundred eleven", and thus it is an aban number.