1113322112 has 64 divisors (see below), whose sum is σ = 2683938240. Its totient is φ = 449064960.

The previous prime is 1113322099. The next prime is 1113322117. The reversal of 1113322112 is 2112233111.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1113322112² = 2478972250136281088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1113322117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21314 + ... + 51777.

It is an arithmetic number, because the mean of its divisors is an integer number (41936535).

Almost surely, 2^1113322112 is an apocalyptic number.

It is an amenable number.

1113322112 is an abundant number, since it is smaller than the sum of its proper divisors (1570616128).

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

1113322112 is an equidigital number, since it uses as much as digits as its factorization.

1113322112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73129 (or 73117 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 1113322112 is about 33366.4818642901. The cubic root of 1113322112 is about 1036.4307228441.

Adding to 1113322112 its reverse (2112233111), we get a palindrome (3225555223).

The spelling of 1113322112 in words is "one billion, one hundred thirteen million, three hundred twenty-two thousand, one hundred twelve".