11103563243808 has 768 divisors, whose sum is σ = 39674849034240. Its totient is φ = 2952481923072.

The previous prime is 11103563243779. The next prime is 11103563243813. The reversal of 11103563243808 is 80834236530111.

It is a happy number.

11103563243808 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 3 + 5 + 632 + 4 + 3 + 8 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1131049716 + ... + 1131059532.

It is an arithmetic number, because the mean of its divisors is an integer number (51659959680).

Almost surely, 2^{11103563243808} is an apocalyptic number.

11103563243808 is a gapful number since it is divisible by the number (18) 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 11103563243808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19837424517120).

11103563243808 is an abundant number, since it is smaller than the sum of its proper divisors (28571285790432).

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

11103563243808 is a wasteful number, since it uses less digits than its factorization.

11103563243808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10086 (or 10072 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

Adding to 11103563243808 its reverse (80834236530111), we get a palindrome (91937799773919).

The spelling of 11103563243808 in words is "eleven trillion, one hundred three billion, five hundred sixty-three million, two hundred forty-three thousand, eight hundred eight".