11113326440 has 32 divisors (see below), whose sum is σ = 25112323080. Its totient is φ = 4426248192.

The previous prime is 11113326439. The next prime is 11113326449. The reversal of 11113326440 is 4462331111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8149395076 + 2963931364 = 90274^2 + 54442^2 .

It is not an unprimeable number, because it can be changed into a prime (11113326449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586889 + ... + 605528.

Almost surely, 2^11113326440 is an apocalyptic number.

11113326440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11113326440 is an abundant number, since it is smaller than the sum of its proper divisors (13998996640).

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

11113326440 is a wasteful number, since it uses less digits than its factorization.

11113326440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192661 (or 1192657 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 11113326440 its reverse (4462331111), we get a palindrome (15575657551).

The spelling of 11113326440 in words is "eleven billion, one hundred thirteen million, three hundred twenty-six thousand, four hundred forty".