111121011011011 has 8 divisors (see below), whose sum is σ = 111142985374080. Its totient is φ = 111099037979328.

The previous prime is 111121011010981. The next prime is 111121011011047. The reversal of 111121011011011 is 110110110121111.

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 111121011011011 - 2¹⁷ = 111121010879939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111121011010982 and 111121011011000.

It is not an unprimeable number, because it can be changed into a prime (111121711011011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175743645 + ... + 176374801.

It is an arithmetic number, because the mean of its divisors is an integer number (13892873171760).

Almost surely, 2^{111121011011011} is an apocalyptic number.

111121011011011 is a deficient number, since it is larger than the sum of its proper divisors (21974363069).

111121011011011 is an equidigital number, since it uses as much as digits as its factorization.

111121011011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665693.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 111121011011011 its reverse (110110110121111), we get a palindrome (221231121132122).

The spelling of 111121011011011 in words is "one hundred eleven trillion, one hundred twenty-one billion, eleven million, eleven thousand, eleven".