110020121111 has 4 divisors (see below), whose sum is σ = 110022747000. Its totient is φ = 110017495224.

The previous prime is 110020121089. The next prime is 110020121137. The reversal of 110020121111 is 111121020011.

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 110020121111 - 2²² = 110015926807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110020121092 and 110020121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110020121011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249061 + ... + 1334238.

It is an arithmetic number, because the mean of its divisors is an integer number (27505686750).

Almost surely, 2^110020121111 is an apocalyptic number.

110020121111 is a deficient number, since it is larger than the sum of its proper divisors (2625889).

110020121111 is an equidigital number, since it uses as much as digits as its factorization.

110020121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625888.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 110020121111 its reverse (111121020011), we get a palindrome (221141141122).

The spelling of 110020121111 in words is "one hundred ten billion, twenty million, one hundred twenty-one thousand, one hundred eleven".