111321112 has 32 divisors (see below), whose sum is σ = 241574400. Its totient is φ = 47103264.

The previous prime is 111321107. The next prime is 111321121. The reversal of 111321112 is 211123111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111321092 and 111321101.

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, 8158 + ... + 17005.

It is an arithmetic number, because the mean of its divisors is an integer number (7549200).

Almost surely, 2^111321112 is an apocalyptic number.

It is an amenable number.

111321112 is an abundant number, since it is smaller than the sum of its proper divisors (130253288).

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

111321112 is a wasteful number, since it uses less digits than its factorization.

111321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25255 (or 25251 counting only the distinct ones).

The product of its digits is 12, while the sum is 13.

The square root of 111321112 is about 10550.8820484356. The cubic root of 111321112 is about 481.0525398498.

Adding to 111321112 its reverse (211123111), we get a palindrome (322444223).

The spelling of 111321112 in words is "one hundred eleven million, three hundred twenty-one thousand, one hundred twelve".