2011321344 has 44 divisors (see below), whose sum is σ = 5360912864. Its totient is φ = 670439424.

The previous prime is 2011321343. The next prime is 2011321381. The reversal of 2011321344 is 4431231102.

It is a self number, because there is not a number n which added to its sum of digits gives 2011321344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011321343) 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 3 ways as a sum of consecutive naturals, for example, 324292 + ... + 330435.

Almost surely, 2^2011321344 is an apocalyptic number.

2011321344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2011321344 is an abundant number, since it is smaller than the sum of its proper divisors (3349591520).

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

2011321344 is an equidigital number, since it uses as much as digits as its factorization.

2011321344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654750 (or 654732 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2011321344 is about 44847.7574021266. The cubic root of 2011321344 is about 1262.2939114506.

Adding to 2011321344 its reverse (4431231102), we get a palindrome (6442552446).

The spelling of 2011321344 in words is "two billion, eleven million, three hundred twenty-one thousand, three hundred forty-four".