2012000321 has 4 divisors (see below), whose sum is σ = 2012191572. Its totient is φ = 2011809072.

The previous prime is 2012000317. The next prime is 2012000323. The reversal of 2012000321 is 1230002102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 747202225 + 1264798096 = 27335^2 + 35564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012000321 - 2² = 2012000317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012000323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78866 + ... + 101211.

It is an arithmetic number, because the mean of its divisors is an integer number (503047893).

Almost surely, 2^2012000321 is an apocalyptic number.

It is an amenable number.

2012000321 is a deficient number, since it is larger than the sum of its proper divisors (191251).

2012000321 is a wasteful number, since it uses less digits than its factorization.

2012000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191250.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2012000321 is about 44855.3265621821. The cubic root of 2012000321 is about 1262.4359361800.

Adding to 2012000321 its reverse (1230002102), we get a palindrome (3242002423).

The spelling of 2012000321 in words is "two billion, twelve million, three hundred twenty-one", and thus it is an aban number.