21302401063 has 2 divisors, whose sum is σ = 21302401064. Its totient is φ = 21302401062.

The previous prime is 21302401013. The next prime is 21302401079. The reversal of 21302401063 is 36010420312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21302401063 - 2⁹ = 21302400551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21302401013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651200531 + 10651200532.

It is an arithmetic number, because the mean of its divisors is an integer number (10651200532).

Almost surely, 2^21302401063 is an apocalyptic number.

21302401063 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302401063 is an equidigital number, since it uses as much as digits as its factorization.

21302401063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21302401063 its reverse (36010420312), we get a palindrome (57312821375).

The spelling of 21302401063 in words is "twenty-one billion, three hundred two million, four hundred one thousand, sixty-three".