21002132200103 has 2 divisors, whose sum is σ = 21002132200104. Its totient is φ = 21002132200102.

The previous prime is 21002132200087. The next prime is 21002132200121. The reversal of 21002132200103 is 30100223120012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21002132200103 - 2⁴ = 21002132200087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21002132206103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501066100051 + 10501066100052.

It is an arithmetic number, because the mean of its divisors is an integer number (10501066100052).

Almost surely, 2^{21002132200103} is an apocalyptic number.

21002132200103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002132200103 is an equidigital number, since it uses as much as digits as its factorization.

21002132200103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21002132200103 its reverse (30100223120012), we get a palindrome (51102355320115).

The spelling of 21002132200103 in words is "twenty-one trillion, two billion, one hundred thirty-two million, two hundred thousand, one hundred three".