11113243440 has 160 divisors (see below), whose sum is σ = 37484642496. Its totient is φ = 2707292160.

The previous prime is 11113243433. The next prime is 11113243457. The reversal of 11113243440 is 4434231111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11113243440.

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, 284280 + ... + 321000.

Almost surely, 2^11113243440 is an apocalyptic number.

11113243440 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 11113243440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18742321248).

11113243440 is an abundant number, since it is smaller than the sum of its proper divisors (26371399056).

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

11113243440 is a wasteful number, since it uses less digits than its factorization.

11113243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36847 (or 36841 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11113243440 its reverse (4434231111), we get a palindrome (15547474551).

The spelling of 11113243440 in words is "eleven billion, one hundred thirteen million, two hundred forty-three thousand, four hundred forty".