2111343344 has 80 divisors (see below), whose sum is σ = 4590241920. Its totient is φ = 932494080.

The previous prime is 2111343341. The next prime is 2111343359. The reversal of 2111343344 is 4433431112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111343341) 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, 1717322 + ... + 1718550.

It is an arithmetic number, because the mean of its divisors is an integer number (57378024).

Almost surely, 2^2111343344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111343344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2295120960).

2111343344 is an abundant number, since it is smaller than the sum of its proper divisors (2478898576).

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

2111343344 is a wasteful number, since it uses less digits than its factorization.

2111343344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1512 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 2111343344 is about 45949.3562958177. The cubic root of 2111343344 is about 1282.8807480975.

Adding to 2111343344 its reverse (4433431112), we get a palindrome (6544774456).

The spelling of 2111343344 in words is "two billion, one hundred eleven million, three hundred forty-three thousand, three hundred forty-four".