63221350403 has 4 divisors (see below), whose sum is σ = 63873117000. Its totient is φ = 62569583808.

The previous prime is 63221350397. The next prime is 63221350447. The reversal of 63221350403 is 30405312236.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63221350403 - 2²⁰ = 63220301827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63221350453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325883153 + ... + 325883346.

It is an arithmetic number, because the mean of its divisors is an integer number (15968279250).

Almost surely, 2^63221350403 is an apocalyptic number.

63221350403 is a deficient number, since it is larger than the sum of its proper divisors (651766597).

63221350403 is an equidigital number, since it uses as much as digits as its factorization.

63221350403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651766596.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 63221350403 its reverse (30405312236), we get a palindrome (93626662639).

The spelling of 63221350403 in words is "sixty-three billion, two hundred twenty-one million, three hundred fifty thousand, four hundred three".