12002020021993 has 2 divisors, whose sum is σ = 12002020021994. Its totient is φ = 12002020021992.

The previous prime is 12002020021939. The next prime is 12002020022021. The reversal of 12002020021993 is 39912002020021.

Together with previous prime (12002020021939) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8729206157529 + 3272813864464 = 2954523^2 + 1809092^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002020021993 - 2¹⁷ = 12002019890921 is a prime.

It is not a weakly prime, because it can be changed into another prime (12002020021913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001010010996 + 6001010010997.

It is an arithmetic number, because the mean of its divisors is an integer number (6001010010997).

Almost surely, 2^{12002020021993} is an apocalyptic number.

It is an amenable number.

12002020021993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002020021993 is an equidigital number, since it uses as much as digits as its factorization.

12002020021993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 12002020021993 in words is "twelve trillion, two billion, twenty million, twenty-one thousand, nine hundred ninety-three".