11111210440 has 64 divisors (see below), whose sum is σ = 27787613760. Its totient is φ = 3964197120.

The previous prime is 11111210413. The next prime is 11111210441. The reversal of 11111210440 is 4401211111.

11111210440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11111210441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214914 + ... + 261553.

It is an arithmetic number, because the mean of its divisors is an integer number (434181465).

Almost surely, 2^11111210440 is an apocalyptic number.

11111210440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111210440 is an abundant number, since it is smaller than the sum of its proper divisors (16676403320).

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

11111210440 is a wasteful number, since it uses less digits than its factorization.

11111210440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476542 (or 476538 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11111210440 its reverse (4401211111), we get a palindrome (15512421551).

The spelling of 11111210440 in words is "eleven billion, one hundred eleven million, two hundred ten thousand, four hundred forty".