200002121021039 has 2 divisors, whose sum is σ = 200002121021040. Its totient is φ = 200002121021038.

The previous prime is 200002121021009. The next prime is 200002121021093. The reversal of 200002121021039 is 930120121200002.

It is a happy number.

Together with next prime (200002121021093) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200002121021039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200002121021009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100001060510519 + 100001060510520.

It is an arithmetic number, because the mean of its divisors is an integer number (100001060510520).

Almost surely, 2^{200002121021039} is an apocalyptic number.

200002121021039 is a deficient number, since it is larger than the sum of its proper divisors (1).

200002121021039 is an equidigital number, since it uses as much as digits as its factorization.

200002121021039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 200002121021039 in words is "two hundred trillion, two billion, one hundred twenty-one million, twenty-one thousand, thirty-nine".