11112321200 has 120 divisors (see below), whose sum is σ = 28316226336. Its totient is φ = 4181760000.

The previous prime is 11112321179. The next prime is 11112321203. The reversal of 11112321200 is 212321111.

It is not an unprimeable number, because it can be changed into a prime (11112321203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 551300 + ... + 571100.

Almost surely, 2^11112321200 is an apocalyptic number.

11112321200 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 11112321200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14158113168).

11112321200 is an abundant number, since it is smaller than the sum of its proper divisors (17203905136).

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

11112321200 is a wasteful number, since it uses less digits than its factorization.

11112321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19903 (or 19892 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11112321200 its reverse (212321111), we get a palindrome (11324642311).

The spelling of 11112321200 in words is "eleven billion, one hundred twelve million, three hundred twenty-one thousand, two hundred".