111801116 has 24 divisors (see below), whose sum is σ = 226437120. Its totient is φ = 47307312.

The previous prime is 111801043. The next prime is 111801121. The reversal of 111801116 is 611108111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23060 + ... + 27483.

It is an arithmetic number, because the mean of its divisors is an integer number (9434880).

Almost surely, 2^111801116 is an apocalyptic number.

It is an amenable number.

111801116 is an abundant number, since it is smaller than the sum of its proper divisors (114636004).

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

111801116 is a wasteful number, since it uses less digits than its factorization.

111801116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50633 (or 50631 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 20.

The square root of 111801116 is about 10573.6046833613. The cubic root of 111801116 is about 481.7429631071.

Adding to 111801116 its reverse (611108111), we get a palindrome (722909227).

The spelling of 111801116 in words is "one hundred eleven million, eight hundred one thousand, one hundred sixteen".