21300330203513 has 2 divisors, whose sum is σ = 21300330203514. Its totient is φ = 21300330203512.

The previous prime is 21300330203491. The next prime is 21300330203569. The reversal of 21300330203513 is 31530203300312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16649566230544 + 4650763972969 = 4080388^2 + 2156563^2 .

It is a cyclic number.

It is not a de Polignac number, because 21300330203513 - 2²⁸ = 21300061768057 is a prime.

It is not a weakly prime, because it can be changed into another prime (21300330202513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650165101756 + 10650165101757.

It is an arithmetic number, because the mean of its divisors is an integer number (10650165101757).

Almost surely, 2^{21300330203513} is an apocalyptic number.

It is an amenable number.

21300330203513 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300330203513 is an equidigital number, since it uses as much as digits as its factorization.

21300330203513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 26.

Adding to 21300330203513 its reverse (31530203300312), we get a palindrome (52830533503825).

The spelling of 21300330203513 in words is "twenty-one trillion, three hundred billion, three hundred thirty million, two hundred three thousand, five hundred thirteen".