21002000131303 has 2 divisors, whose sum is σ = 21002000131304. Its totient is φ = 21002000131302.

The previous prime is 21002000131249. The next prime is 21002000131379. The reversal of 21002000131303 is 30313100020012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21002000131303 - 2⁹ = 21002000130791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21002000131393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501000065651 + 10501000065652.

It is an arithmetic number, because the mean of its divisors is an integer number (10501000065652).

Almost surely, 2^{21002000131303} is an apocalyptic number.

21002000131303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002000131303 is an equidigital number, since it uses as much as digits as its factorization.

21002000131303 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 16.

Adding to 21002000131303 its reverse (30313100020012), we get a palindrome (51315100151315).

The spelling of 21002000131303 in words is "twenty-one trillion, two billion, one hundred thirty-one thousand, three hundred three".