2011423321 has 4 divisors (see below), whose sum is σ = 2011637200. Its totient is φ = 2011209444.

The previous prime is 2011423303. The next prime is 2011423363. The reversal of 2011423321 is 1233241102.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 2011423321 - 2²⁵ = 1977868889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011423621) by changing a digit.

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, 92151 + ... + 111868.

It is an arithmetic number, because the mean of its divisors is an integer number (502909300).

Almost surely, 2^2011423321 is an apocalyptic number.

It is an amenable number.

2011423321 is a deficient number, since it is larger than the sum of its proper divisors (213879).

2011423321 is an equidigital number, since it uses as much as digits as its factorization.

2011423321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213878.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2011423321 is about 44848.8943119003. The cubic root of 2011423321 is about 1262.3152444864.

Adding to 2011423321 its reverse (1233241102), we get a palindrome (3244664423).

The spelling of 2011423321 in words is "two billion, eleven million, four hundred twenty-three thousand, three hundred twenty-one".