1112105512 has 16 divisors (see below), whose sum is σ = 2383083360. Its totient is φ = 476616624.

The previous prime is 1112105503. The next prime is 1112105513. The reversal of 1112105512 is 2155012111.

It is a self number, because there is not a number n which added to its sum of digits gives 1112105512.

It is not an unprimeable number, because it can be changed into a prime (1112105513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9929458 + ... + 9929569.

It is an arithmetic number, because the mean of its divisors is an integer number (148942710).

Almost surely, 2^1112105512 is an apocalyptic number.

It is an amenable number.

1112105512 is an abundant number, since it is smaller than the sum of its proper divisors (1270977848).

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

1112105512 is a wasteful number, since it uses less digits than its factorization.

1112105512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19859040 (or 19859036 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 19.

The square root of 1112105512 is about 33348.2460108474. The cubic root of 1112105512 is about 1036.0530599976.

Adding to 1112105512 its reverse (2155012111), we get a palindrome (3267117623).

The spelling of 1112105512 in words is "one billion, one hundred twelve million, one hundred five thousand, five hundred twelve".