1112331556 has 72 divisors (see below), whose sum is σ = 2413152000. Its totient is φ = 445761792.

The previous prime is 1112331551. The next prime is 1112331557. The reversal of 1112331556 is 6551332111.

It is a super-2 number, since 2×1112331556² = 2474562980946762272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1112331551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 555445 + ... + 557443.

It is an arithmetic number, because the mean of its divisors is an integer number (33516000).

Almost surely, 2^1112331556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112331556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206576000).

1112331556 is an abundant number, since it is smaller than the sum of its proper divisors (1300820444).

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

1112331556 is a wasteful number, since it uses less digits than its factorization.

1112331556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201 (or 2192 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 1112331556 is about 33351.6349824113. The cubic root of 1112331556 is about 1036.1232504936.

Adding to 1112331556 its reverse (6551332111), we get a palindrome (7663663667).

The spelling of 1112331556 in words is "one billion, one hundred twelve million, three hundred thirty-one thousand, five hundred fifty-six".