2011303321 has 4 divisors (see below), whose sum is σ = 2011414032. Its totient is φ = 2011192612.

The previous prime is 2011303271. The next prime is 2011303361. The reversal of 2011303321 is 1233031102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2011303321 - 2⁹ = 2011302809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011303295 and 2011303304.

It is not an unprimeable number, because it can be changed into a prime (2011303361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20995 + ... + 66808.

It is an arithmetic number, because the mean of its divisors is an integer number (502853508).

Almost surely, 2^2011303321 is an apocalyptic number.

It is an amenable number.

2011303321 is a deficient number, since it is larger than the sum of its proper divisors (110711).

2011303321 is an equidigital number, since it uses as much as digits as its factorization.

2011303321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110710.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2011303321 is about 44847.5564663227. The cubic root of 2011303321 is about 1262.2901410617.

Adding to 2011303321 its reverse (1233031102), we get a palindrome (3244334423).

The spelling of 2011303321 in words is "two billion, eleven million, three hundred three thousand, three hundred twenty-one".