21002323300027 has 2 divisors, whose sum is σ = 21002323300028. Its totient is φ = 21002323300026.

The previous prime is 21002323299977. The next prime is 21002323300037. The reversal of 21002323300027 is 72000332320012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21002323300027 - 2¹⁹ = 21002322775739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21002323299974 and 21002323300010.

It is not a weakly prime, because it can be changed into another prime (21002323300037) 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, 10501161650013 + 10501161650014.

It is an arithmetic number, because the mean of its divisors is an integer number (10501161650014).

Almost surely, 2^{21002323300027} is an apocalyptic number.

21002323300027 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002323300027 is an equidigital number, since it uses as much as digits as its factorization.

21002323300027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

Adding to 21002323300027 its reverse (72000332320012), we get a palindrome (93002655620039).

The spelling of 21002323300027 in words is "twenty-one trillion, two billion, three hundred twenty-three million, three hundred thousand, twenty-seven".