1111111344 has 100 divisors (see below), whose sum is σ = 3675319824. Its totient is φ = 317457792.

The previous prime is 1111111343. The next prime is 1111111363. The reversal of 1111111344 is 4431111111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1111111343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 52167 + ... + 70310.

Almost surely, 2^1111111344 is an apocalyptic number.

1111111344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1111111344 is an abundant number, since it is smaller than the sum of its proper divisors (2564208480).

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

1111111344 is a wasteful number, since it uses less digits than its factorization.

1111111344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122504 (or 122489 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

The square root of 1111111344 is about 33333.3368266665. The cubic root of 1111111344 is about 1035.7442410153.

Adding to 1111111344 its reverse (4431111111), we get a palindrome (5542222455).

The spelling of 1111111344 in words is "one billion, one hundred eleven million, one hundred eleven thousand, three hundred forty-four".