20303332033321 has 4 divisors (see below), whose sum is σ = 20735317821312. Its totient is φ = 19871346245332.

The previous prime is 20303332033223. The next prime is 20303332033331. The reversal of 20303332033321 is 12333023330302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20303332033321 - 2³⁵ = 20268972294953 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 20303332033321.

It is not an unprimeable number, because it can be changed into a prime (20303332033331) 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 3 ways as a sum of consecutive naturals, for example, 215992893925 + ... + 215992894018.

It is an arithmetic number, because the mean of its divisors is an integer number (5183829455328).

Almost surely, 2^{20303332033321} is an apocalyptic number.

It is an amenable number.

20303332033321 is a deficient number, since it is larger than the sum of its proper divisors (431985787991).

20303332033321 is an equidigital number, since it uses as much as digits as its factorization.

20303332033321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431985787990.

The product of its (nonzero) digits is 17496, while the sum is 28.

Adding to 20303332033321 its reverse (12333023330302), we get a palindrome (32636355363623).

The spelling of 20303332033321 in words is "twenty trillion, three hundred three billion, three hundred thirty-two million, thirty-three thousand, three hundred twenty-one".