20323202020021 has 8 divisors (see below), whose sum is σ = 20357591889600. Its totient is φ = 20288835685632.

The previous prime is 20323202020007. The next prime is 20323202020097. The reversal of 20323202020021 is 12002020232302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20323202020021 - 2²⁹ = 20322665149109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323202020621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4154860 + ... + 7609813.

It is an arithmetic number, because the mean of its divisors is an integer number (2544698986200).

Almost surely, 2^{20323202020021} is an apocalyptic number.

It is an amenable number.

20323202020021 is a deficient number, since it is larger than the sum of its proper divisors (34389869579).

20323202020021 is a wasteful number, since it uses less digits than its factorization.

20323202020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11767595.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20323202020021 its reverse (12002020232302), we get a palindrome (32325222252323).

The spelling of 20323202020021 in words is "twenty trillion, three hundred twenty-three billion, two hundred two million, twenty thousand, twenty-one".