11312231200 has 144 divisors (see below), whose sum is σ = 28370684160. Its totient is φ = 4402944000.

The previous prime is 11312231159. The next prime is 11312231219. The reversal of 11312231200 is 213221311.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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, 4485940 + ... + 4488460.

It is an arithmetic number, because the mean of its divisors is an integer number (197018640).

Almost surely, 2^11312231200 is an apocalyptic number.

11312231200 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 11312231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14185342080).

11312231200 is an abundant number, since it is smaller than the sum of its proper divisors (17058452960).

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

11312231200 is a wasteful number, since it uses less digits than its factorization.

11312231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691 (or 2678 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11312231200 its reverse (213221311), we get a palindrome (11525452511).

The spelling of 11312231200 in words is "eleven billion, three hundred twelve million, two hundred thirty-one thousand, two hundred".