1123242200 has 24 divisors (see below), whose sum is σ = 2611538580. Its totient is φ = 449296800.

The previous prime is 1123242199. The next prime is 1123242257. The reversal of 1123242200 is 22423211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2807906 + ... + 2808305.

Almost surely, 2^1123242200 is an apocalyptic number.

1123242200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123242200 is an abundant number, since it is smaller than the sum of its proper divisors (1488296380).

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

1123242200 is a wasteful number, since it uses less digits than its factorization.

1123242200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616227 (or 5616218 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1123242200 is about 33514.8056834588. The cubic root of 1123242200 is about 1039.4999445118.

Adding to 1123242200 its reverse (22423211), we get a palindrome (1145665411).

The spelling of 1123242200 in words is "one billion, one hundred twenty-three million, two hundred forty-two thousand, two hundred".