1112131200 has 384 divisors, whose sum is σ = 3921891840. Its totient is φ = 276480000.

The previous prime is 1112131187. The next prime is 1112131217. The reversal of 1112131200 is 21312111.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11011150 + ... + 11011250.

It is an arithmetic number, because the mean of its divisors is an integer number (10213260).

Almost surely, 2^1112131200 is an apocalyptic number.

1112131200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960945920).

1112131200 is an abundant number, since it is smaller than the sum of its proper divisors (2809760640).

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

1112131200 is a wasteful number, since it uses less digits than its factorization.

1112131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1112131200 is about 33348.6311563158. The cubic root of 1112131200 is about 1036.0610370363.

Adding to 1112131200 its reverse (21312111), we get a palindrome (1133443311).

The spelling of 1112131200 in words is "one billion, one hundred twelve million, one hundred thirty-one thousand, two hundred".