12020323000321 has 4 divisors (see below), whose sum is σ = 12020335829572. Its totient is φ = 12020310171072.

The previous prime is 12020323000249. The next prime is 12020323000369. The reversal of 12020323000321 is 12300032302021.

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 9601476890625 + 2418846109696 = 3098625^2 + 1555264^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020323000321 - 2¹⁵ = 12020322967553 is a prime.

It is a super-2 number, since 2×12020323000321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020323003321) 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, 4888116 + ... + 6923461.

It is an arithmetic number, because the mean of its divisors is an integer number (3005083957393).

Almost surely, 2^{12020323000321} is an apocalyptic number.

It is an amenable number.

12020323000321 is a deficient number, since it is larger than the sum of its proper divisors (12829251).

12020323000321 is a wasteful number, since it uses less digits than its factorization.

12020323000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12829250.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12020323000321 its reverse (12300032302021), we get a palindrome (24320355302342).

The spelling of 12020323000321 in words is "twelve trillion, twenty billion, three hundred twenty-three million, three hundred twenty-one", and thus it is an aban number.