2011333320 has 192 divisors, whose sum is σ = 6931491840. Its totient is φ = 504921600.

The previous prime is 2011333307. The next prime is 2011333327. The reversal of 2011333320 is 233331102.

2011333320 is a `hidden beast` number, since 2 + 0 + 11 + 333 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2011333293 and 2011333302.

It is not an unprimeable number, because it can be changed into a prime (2011333327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410485 + ... + 415355.

It is an arithmetic number, because the mean of its divisors is an integer number (36101520).

Almost surely, 2^2011333320 is an apocalyptic number.

2011333320 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 2011333320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3465745920).

2011333320 is an abundant number, since it is smaller than the sum of its proper divisors (4920158520).

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

2011333320 is a wasteful number, since it uses less digits than its factorization.

2011333320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956 (or 4949 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2011333320 is about 44847.8909203097. The cubic root of 2011333320 is about 1262.2964168023.

Adding to 2011333320 its reverse (233331102), we get a palindrome (2244664422).

The spelling of 2011333320 in words is "two billion, eleven million, three hundred thirty-three thousand, three hundred twenty".