21300200102189 has 2 divisors, whose sum is σ = 21300200102190. Its totient is φ = 21300200102188.

The previous prime is 21300200102177. The next prime is 21300200102197. The reversal of 21300200102189 is 98120100200312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16735119176164 + 4565080926025 = 4090858^2 + 2136605^2 .

It is a cyclic number.

It is not a de Polignac number, because 21300200102189 - 2²⁸ = 21299931666733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21300200102989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650100051094 + 10650100051095.

It is an arithmetic number, because the mean of its divisors is an integer number (10650100051095).

Almost surely, 2^{21300200102189} is an apocalyptic number.

It is an amenable number.

21300200102189 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300200102189 is an equidigital number, since it uses as much as digits as its factorization.

21300200102189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 21300200102189 in words is "twenty-one trillion, three hundred billion, two hundred million, one hundred two thousand, one hundred eighty-nine".