111112011 has 12 divisors (see below), whose sum is σ = 167473488. Its totient is φ = 70853904.

The previous prime is 111112007. The next prime is 111112037. The reversal of 111112011 is 110211111.

It is not a de Polignac number, because 111112011 - 2² = 111112007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111111984 and 111112002.

It is not an unprimeable number, because it can be changed into a prime (111112081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268180 + ... + 268593.

It is an arithmetic number, because the mean of its divisors is an integer number (13956124).

Almost surely, 2^111112011 is an apocalyptic number.

111112011 is a deficient number, since it is larger than the sum of its proper divisors (56361477).

111112011 is a wasteful number, since it uses less digits than its factorization.

111112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536802 (or 536799 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 111112011 is about 10540.9682192861. The cubic root of 111112011 is about 480.7511546300.

Adding to 111112011 its reverse (110211111), we get a palindrome (221323122).

The spelling of 111112011 in words is "one hundred eleven million, one hundred twelve thousand, eleven".