11243323140 has 96 divisors (see below), whose sum is σ = 36009120000. Its totient is φ = 2567725056.

The previous prime is 11243323139. The next prime is 11243323159. The reversal of 11243323140 is 4132334211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11243323140.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 513864 + ... + 535296.

It is an arithmetic number, because the mean of its divisors is an integer number (375095000).

Almost surely, 2^11243323140 is an apocalyptic number.

11243323140 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 11243323140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18004560000).

11243323140 is an abundant number, since it is smaller than the sum of its proper divisors (24765796860).

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

11243323140 is a wasteful number, since it uses less digits than its factorization.

11243323140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22701 (or 22699 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11243323140 its reverse (4132334211), we get a palindrome (15375657351).

The spelling of 11243323140 in words is "eleven billion, two hundred forty-three million, three hundred twenty-three thousand, one hundred forty".