111121110011 has 4 divisors (see below), whose sum is σ = 117657645912. Its totient is φ = 104584574112.

The previous prime is 111121109999. The next prime is 111121110019. The reversal of 111121110011 is 110011121111.

It is a happy number.

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 111121110011 - 2¹⁸ = 111120847867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111121109974 and 111121110001.

It is not an unprimeable number, because it can be changed into a prime (111121110019) 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, 3268267925 + ... + 3268267958.

It is an arithmetic number, because the mean of its divisors is an integer number (29414411478).

Almost surely, 2^111121110011 is an apocalyptic number.

111121110011 is a deficient number, since it is larger than the sum of its proper divisors (6536535901).

111121110011 is an equidigital number, since it uses as much as digits as its factorization.

111121110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536535900.

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

Adding to 111121110011 its reverse (110011121111), we get a palindrome (221132231122).

The spelling of 111121110011 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred ten thousand, eleven".