2011343320 has 64 divisors (see below), whose sum is σ = 5192812800. Its totient is φ = 686832000.

The previous prime is 2011343303. The next prime is 2011343359. The reversal of 2011343320 is 233431102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55971 + ... + 84589.

It is an arithmetic number, because the mean of its divisors is an integer number (81137700).

Almost surely, 2^2011343320 is an apocalyptic number.

2011343320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011343320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596406400).

2011343320 is an abundant number, since it is smaller than the sum of its proper divisors (3181469480).

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

2011343320 is a wasteful number, since it uses less digits than its factorization.

2011343320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28888 (or 28884 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2011343320 is about 44848.0024081341. The cubic root of 2011343320 is about 1262.2985087717.

Adding to 2011343320 its reverse (233431102), we get a palindrome (2244774422).

The spelling of 2011343320 in words is "two billion, eleven million, three hundred forty-three thousand, three hundred twenty".