11111443040 has 48 divisors (see below), whose sum is σ = 26257125888. Its totient is φ = 4443503616.

The previous prime is 11111443039. The next prime is 11111443043. The reversal of 11111443040 is 4034411111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111443043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184609 + ... + 1193951.

It is an arithmetic number, because the mean of its divisors is an integer number (547023456).

Almost surely, 2^11111443040 is an apocalyptic number.

11111443040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111443040 is an abundant number, since it is smaller than the sum of its proper divisors (15145682848).

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

11111443040 is an equidigital number, since it uses as much as digits as its factorization.

11111443040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16791 (or 16783 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11111443040 its reverse (4034411111), we get a palindrome (15145854151).

The spelling of 11111443040 in words is "eleven billion, one hundred eleven million, four hundred forty-three thousand, forty".