111121118 has 8 divisors (see below), whose sum is σ = 166921560. Its totient is φ = 55480600.

The previous prime is 111121117. The next prime is 111121121. The reversal of 111121118 is 811121111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 111121096 and 111121105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38228 + ... + 41031.

It is an arithmetic number, because the mean of its divisors is an integer number (20865195).

Almost surely, 2^111121118 is an apocalyptic number.

111121118 is a deficient number, since it is larger than the sum of its proper divisors (55800442).

111121118 is an equidigital number, since it uses as much as digits as its factorization.

111121118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79962.

The product of its digits is 16, while the sum is 17.

The square root of 111121118 is about 10541.4001916254. The cubic root of 111121118 is about 480.7642887671.

Adding to 111121118 its reverse (811121111), we get a palindrome (922242229).

The spelling of 111121118 in words is "one hundred eleven million, one hundred twenty-one thousand, one hundred eighteen".