21000200002003 has 2 divisors, whose sum is σ = 21000200002004. Its totient is φ = 21000200002002.

The previous prime is 21000200001959. The next prime is 21000200002013. The reversal of 21000200002003 is 30020000200012.

It is an a-pointer prime, because the next prime (21000200002013) can be obtained adding 21000200002003 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21000200002003 - 2¹³ = 21000199993811 is a prime.

It is not a weakly prime, because it can be changed into another prime (21000200002013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500100001001 + 10500100001002.

It is an arithmetic number, because the mean of its divisors is an integer number (10500100001002).

Almost surely, 2^{21000200002003} is an apocalyptic number.

21000200002003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000200002003 is an equidigital number, since it uses as much as digits as its factorization.

21000200002003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 21000200002003 its reverse (30020000200012), we get a palindrome (51020200202015).

The spelling of 21000200002003 in words is "twenty-one trillion, two hundred million, two thousand, three".