21213302002003 has 2 divisors, whose sum is σ = 21213302002004. Its totient is φ = 21213302002002.

The previous prime is 21213302001953. The next prime is 21213302002111. The reversal of 21213302002003 is 30020020331212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21213302002003 - 2¹³ = 21213301993811 is a prime.

It is not a weakly prime, because it can be changed into another prime (21213302702003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606651001001 + 10606651001002.

It is an arithmetic number, because the mean of its divisors is an integer number (10606651001002).

Almost surely, 2^{21213302002003} is an apocalyptic number.

21213302002003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21213302002003 is an equidigital number, since it uses as much as digits as its factorization.

21213302002003 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 19.

Adding to 21213302002003 its reverse (30020020331212), we get a palindrome (51233322333215).

The spelling of 21213302002003 in words is "twenty-one trillion, two hundred thirteen billion, three hundred two million, two thousand, three".