21000200111039 has 2 divisors, whose sum is σ = 21000200111040. Its totient is φ = 21000200111038.

The previous prime is 21000200111021. The next prime is 21000200111123. The reversal of 21000200111039 is 93011100200012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21000200111039 - 2³² = 20995905143743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21000200111039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21000200114039) 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, 10500100055519 + 10500100055520.

It is an arithmetic number, because the mean of its divisors is an integer number (10500100055520).

Almost surely, 2^{21000200111039} is an apocalyptic number.

21000200111039 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000200111039 is an equidigital number, since it uses as much as digits as its factorization.

21000200111039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 21000200111039 in words is "twenty-one trillion, two hundred million, one hundred eleven thousand, thirty-nine".