111020112 has 80 divisors (see below), whose sum is σ = 364202880. Its totient is φ = 31719168.

The previous prime is 111020111. The next prime is 111020131. The reversal of 111020112 is 211020111.

It is a happy number.

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 = 111020094 and 111020103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020111) 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, 15333 + ... + 21380.

It is an arithmetic number, because the mean of its divisors is an integer number (4552536).

Almost surely, 2^111020112 is an apocalyptic number.

111020112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111020112 is an abundant number, since it is smaller than the sum of its proper divisors (253182768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111020112 is a wasteful number, since it uses less digits than its factorization.

111020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36737 (or 36725 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 111020112 is about 10536.6081829021. The cubic root of 111020112 is about 480.6185774948.

Adding to 111020112 its reverse (211020111), we get a palindrome (322040223).

Subtracting 111020112 from its reverse (211020111), we obtain a palindrome (99999999).

The spelling of 111020112 in words is "one hundred eleven million, twenty thousand, one hundred twelve".