20321133303 has 16 divisors (see below), whose sum is σ = 27858786176. Its totient is φ = 13166284320.

The previous prime is 20321133293. The next prime is 20321133319. The reversal of 20321133303 is 30333112302.

It is not a de Polignac number, because 20321133303 - 2⁵ = 20321133271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20321133303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321133323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5653 + ... + 201678.

It is an arithmetic number, because the mean of its divisors is an integer number (1741174136).

Almost surely, 2^20321133303 is an apocalyptic number.

20321133303 is a deficient number, since it is larger than the sum of its proper divisors (7537652873).

20321133303 is a wasteful number, since it uses less digits than its factorization.

20321133303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208254.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20321133303 its reverse (30333112302), we get a palindrome (50654245605).

The spelling of 20321133303 in words is "twenty billion, three hundred twenty-one million, one hundred thirty-three thousand, three hundred three".