63321003 has 24 divisors (see below), whose sum is σ = 95738240. Its totient is φ = 40279680.

The previous prime is 63320993. The next prime is 63321029. The reversal of 63321003 is 30012336.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-63321003 is a prime.

It is a super-3 number, since 3×63321003³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63331003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18813 + ... + 21921.

Almost surely, 2^63321003 is an apocalyptic number.

63321003 is a deficient number, since it is larger than the sum of its proper divisors (32417237).

63321003 is a wasteful number, since it uses less digits than its factorization.

63321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219 (or 3216 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 63321003 is about 7957.4495285864. The cubic root of 63321003 is about 398.5803906502.

Adding to 63321003 its reverse (30012336), we get a palindrome (93333339).

The spelling of 63321003 in words is "sixty-three million, three hundred twenty-one thousand, three".