2012330321 has 2 divisors, whose sum is σ = 2012330322. Its totient is φ = 2012330320.

The previous prime is 2012330293. The next prime is 2012330323. The reversal of 2012330321 is 1230332102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1587145921 + 425184400 = 39839^2 + 20620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012330321 - 2²² = 2008136017 is a prime.

It is a Sophie Germain prime.

Together with 2012330323, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012330321.

It is not a weakly prime, because it can be changed into another prime (2012330323) 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 as a sum of consecutive naturals, namely, 1006165160 + 1006165161.

It is an arithmetic number, because the mean of its divisors is an integer number (1006165161).

Almost surely, 2^2012330321 is an apocalyptic number.

It is an amenable number.

2012330321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012330321 is an equidigital number, since it uses as much as digits as its factorization.

2012330321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2012330321 is about 44859.0049042553. The cubic root of 2012330321 is about 1262.5049522532.

Adding to 2012330321 its reverse (1230332102), we get a palindrome (3242662423).

The spelling of 2012330321 in words is "two billion, twelve million, three hundred thirty thousand, three hundred twenty-one".