21300224063 has 2 divisors, whose sum is σ = 21300224064. Its totient is φ = 21300224062.

The previous prime is 21300224059. The next prime is 21300224089. The reversal of 21300224063 is 36042200312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21300224063 - 2² = 21300224059 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21300214063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650112031 + 10650112032.

It is an arithmetic number, because the mean of its divisors is an integer number (10650112032).

Almost surely, 2^21300224063 is an apocalyptic number.

21300224063 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300224063 is an equidigital number, since it uses as much as digits as its factorization.

21300224063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21300224063 its reverse (36042200312), we get a palindrome (57342424375).

The spelling of 21300224063 in words is "twenty-one billion, three hundred million, two hundred twenty-four thousand, sixty-three".