21302300113 has 2 divisors, whose sum is σ = 21302300114. Its totient is φ = 21302300112.

The previous prime is 21302300099. The next prime is 21302300161. The reversal of 21302300113 is 31100320312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21302278209 + 21904 = 145953^2 + 148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302300113 is a prime.

It is not a weakly prime, because it can be changed into another prime (21302300713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651150056 + 10651150057.

It is an arithmetic number, because the mean of its divisors is an integer number (10651150057).

Almost surely, 2^21302300113 is an apocalyptic number.

It is an amenable number.

21302300113 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302300113 is an equidigital number, since it uses as much as digits as its factorization.

21302300113 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 21302300113 its reverse (31100320312), we get a palindrome (52402620425).

The spelling of 21302300113 in words is "twenty-one billion, three hundred two million, three hundred thousand, one hundred thirteen".