20321002002303 has 32 divisors (see below), whose sum is σ = 32008347645120. Its totient is φ = 12697526200320.

The previous prime is 20321002002289. The next prime is 20321002002331. The reversal of 20321002002303 is 30320020012302.

It is a happy number.

20321002002303 is a `hidden beast` number, since 20 + 3 + 210 + 0 + 200 + 230 + 3 = 666.

It is not a de Polignac number, because 20321002002303 - 2⁵ = 20321002002271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321002002373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91740700 + ... + 91961937.

It is an arithmetic number, because the mean of its divisors is an integer number (1000260863910).

Almost surely, 2^{20321002002303} is an apocalyptic number.

20321002002303 is a deficient number, since it is larger than the sum of its proper divisors (11687345642817).

20321002002303 is a wasteful number, since it uses less digits than its factorization.

20321002002303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183702904 (or 183702898 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20321002002303 its reverse (30320020012302), we get a palindrome (50641022014605).

The spelling of 20321002002303 in words is "twenty trillion, three hundred twenty-one billion, two million, two thousand, three hundred three".