200021000009893 has 2 divisors, whose sum is σ = 200021000009894. Its totient is φ = 200021000009892.

The previous prime is 200021000009797. The next prime is 200021000009911. The reversal of 200021000009893 is 398900000120002.

200021000009893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126408152087044 + 73612847922849 = 11243138^2 + 8579793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200021000009893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200021000000893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010500004946 + 100010500004947.

It is an arithmetic number, because the mean of its divisors is an integer number (100010500004947).

Almost surely, 2^{200021000009893} is an apocalyptic number.

It is an amenable number.

200021000009893 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021000009893 is an equidigital number, since it uses as much as digits as its factorization.

200021000009893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

Adding to 200021000009893 its reverse (398900000120002), we get a palindrome (598921000129895).

The spelling of 200021000009893 in words is "two hundred trillion, twenty-one billion, nine thousand, eight hundred ninety-three".