21302100330103 has 2 divisors, whose sum is σ = 21302100330104. Its totient is φ = 21302100330102.

The previous prime is 21302100330101. The next prime is 21302100330127. The reversal of 21302100330103 is 30103300120312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21302100330103 - 2¹ = 21302100330101 is a prime.

Together with 21302100330101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21302100330101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651050165051 + 10651050165052.

It is an arithmetic number, because the mean of its divisors is an integer number (10651050165052).

Almost surely, 2^{21302100330103} is an apocalyptic number.

21302100330103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302100330103 is an equidigital number, since it uses as much as digits as its factorization.

21302100330103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21302100330103 its reverse (30103300120312), we get a palindrome (51405400450415).

The spelling of 21302100330103 in words is "twenty-one trillion, three hundred two billion, one hundred million, three hundred thirty thousand, one hundred three".