111120112111011 has 16 divisors (see below), whose sum is σ = 150960080229120. Its totient is φ = 72680191889760.

The previous prime is 111120112110937. The next prime is 111120112111031. The reversal of 111120112111011 is 110111211021111.

It is a happy number.

It is not a de Polignac number, because 111120112111011 - 2⁹ = 111120112110499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111120112111031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4903351 + ... + 15693408.

It is an arithmetic number, because the mean of its divisors is an integer number (9435005014320).

Almost surely, 2^{111120112111011} is an apocalyptic number.

111120112111011 is a deficient number, since it is larger than the sum of its proper divisors (39839968118109).

111120112111011 is a wasteful number, since it uses less digits than its factorization.

111120112111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20630746.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 111120112111011 its reverse (110111211021111), we get a palindrome (221231323132122).

The spelling of 111120112111011 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred twelve million, one hundred eleven thousand, eleven".