1123200112 has 20 divisors (see below), whose sum is σ = 2195462160. Its totient is φ = 556629248.

The previous prime is 1123200109. The next prime is 1123200121. The reversal of 1123200112 is 2110023211.

It is a junction number, because it is equal to n+sod(n) for n = 1123200092 and 1123200101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308812 + ... + 312427.

It is an arithmetic number, because the mean of its divisors is an integer number (109773108).

Almost surely, 2^1123200112 is an apocalyptic number.

It is an amenable number.

1123200112 is a deficient number, since it is larger than the sum of its proper divisors (1072262048).

1123200112 is a wasteful number, since it uses less digits than its factorization.

1123200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621360 (or 621354 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1123200112 is about 33514.1777759801. The cubic root of 1123200112 is about 1039.4869609599.

Adding to 1123200112 its reverse (2110023211), we get a palindrome (3233223323).

The spelling of 1123200112 in words is "one billion, one hundred twenty-three million, two hundred thousand, one hundred twelve".