21300210103 has 2 divisors, whose sum is σ = 21300210104. Its totient is φ = 21300210102.

The previous prime is 21300210097. The next prime is 21300210109. The reversal of 21300210103 is 30101200312.

It is a balanced prime because it is at equal distance from previous prime (21300210097) and next prime (21300210109).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21300210103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21300210109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650105051 + 10650105052.

It is an arithmetic number, because the mean of its divisors is an integer number (10650105052).

Almost surely, 2^21300210103 is an apocalyptic number.

21300210103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300210103 is an equidigital number, since it uses as much as digits as its factorization.

21300210103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21300210103 its reverse (30101200312), we get a palindrome (51401410415).

The spelling of 21300210103 in words is "twenty-one billion, three hundred million, two hundred ten thousand, one hundred three".