110111121011 has 4 divisors (see below), whose sum is σ = 110111784672. Its totient is φ = 110110457352.

The previous prime is 110111120969. The next prime is 110111121031. The reversal of 110111121011 is 110121111011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 110111121011 - 2⁶ = 110111120947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110111120983 and 110111121001.

It is not an unprimeable number, because it can be changed into a prime (110111121031) 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, 165665 + ... + 497661.

It is an arithmetic number, because the mean of its divisors is an integer number (27527946168).

Almost surely, 2^110111121011 is an apocalyptic number.

110111121011 is a deficient number, since it is larger than the sum of its proper divisors (663661).

110111121011 is an equidigital number, since it uses as much as digits as its factorization.

110111121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663660.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 110111121011 its reverse (110121111011), we get a palindrome (220232232022).

The spelling of 110111121011 in words is "one hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, eleven".