21003629063 has 2 divisors, whose sum is σ = 21003629064. Its totient is φ = 21003629062.

The previous prime is 21003628951. The next prime is 21003629069. The reversal of 21003629063 is 36092630012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21003629063 - 2¹⁰ = 21003628039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21003629069) 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, 10501814531 + 10501814532.

It is an arithmetic number, because the mean of its divisors is an integer number (10501814532).

Almost surely, 2^21003629063 is an apocalyptic number.

21003629063 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003629063 is an equidigital number, since it uses as much as digits as its factorization.

21003629063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 21003629063 in words is "twenty-one billion, three million, six hundred twenty-nine thousand, sixty-three".