2113311444 has 12 divisors (see below), whose sum is σ = 4931060064. Its totient is φ = 704437144.

The previous prime is 2113311439. The next prime is 2113311451. The reversal of 2113311444 is 4441133112.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 88054632 + ... + 88054655.

It is an arithmetic number, because the mean of its divisors is an integer number (410921672).

Almost surely, 2^2113311444 is an apocalyptic number.

It is an amenable number.

2113311444 is an abundant number, since it is smaller than the sum of its proper divisors (2817748620).

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

2113311444 is a wasteful number, since it uses less digits than its factorization.

2113311444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176109294 (or 176109292 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 2113311444 is about 45970.7672766074. The cubic root of 2113311444 is about 1283.2792390235.

Adding to 2113311444 its reverse (4441133112), we get a palindrome (6554444556).

The spelling of 2113311444 in words is "two billion, one hundred thirteen million, three hundred eleven thousand, four hundred forty-four".