2113223244 has 144 divisors (see below), whose sum is σ = 5778130176. Its totient is φ = 595900800.

The previous prime is 2113223239. The next prime is 2113223251. The reversal of 2113223244 is 4423223112.

It is a happy number.

2113223244 is nontrivially palindromic in base 13.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2906409 + ... + 2907135.

It is an arithmetic number, because the mean of its divisors is an integer number (40125904).

Almost surely, 2^2113223244 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 2113223244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2889065088).

2113223244 is an abundant number, since it is smaller than the sum of its proper divisors (3664906932).

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

2113223244 is a wasteful number, since it uses less digits than its factorization.

2113223244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 823 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 2113223244 is about 45969.8079613130. The cubic root of 2113223244 is about 1283.2613860304.

Adding to 2113223244 its reverse (4423223112), we get a palindrome (6536446356).

The spelling of 2113223244 in words is "two billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred forty-four".