20103332321 has 16 divisors (see below), whose sum is σ = 22062689280. Its totient is φ = 18257828160.

The previous prime is 20103332297. The next prime is 20103332323. The reversal of 20103332321 is 12323330102.

It is a cyclic number.

It is not a de Polignac number, because 20103332321 - 2³⁰ = 19029590497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20103332293 and 20103332302.

It is not an unprimeable number, because it can be changed into a prime (20103332323) 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 15 ways as a sum of consecutive naturals, for example, 228206 + ... + 303783.

It is an arithmetic number, because the mean of its divisors is an integer number (1378918080).

Almost surely, 2^20103332321 is an apocalyptic number.

It is an amenable number.

20103332321 is a deficient number, since it is larger than the sum of its proper divisors (1959356959).

20103332321 is a wasteful number, since it uses less digits than its factorization.

20103332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532096.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20103332321 its reverse (12323330102), we get a palindrome (32426662423).

The spelling of 20103332321 in words is "twenty billion, one hundred three million, three hundred thirty-two thousand, three hundred twenty-one".