20210321220023 has 8 divisors (see below), whose sum is σ = 22585370055696. Its totient is φ = 17924896868800.

The previous prime is 20210321220007. The next prime is 20210321220029. The reversal of 20210321220023 is 32002212301202.

It is a happy number.

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 20210321220023 - 2⁴ = 20210321220007 is a prime.

It is a super-2 number, since 2×20210321220023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210321219977 and 20210321220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210321220029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22406120636 + ... + 22406121537.

It is an arithmetic number, because the mean of its divisors is an integer number (2823171256962).

Almost surely, 2^{20210321220023} is an apocalyptic number.

20210321220023 is a deficient number, since it is larger than the sum of its proper divisors (2375048835673).

20210321220023 is a wasteful number, since it uses less digits than its factorization.

20210321220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44812242225.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20210321220023 its reverse (32002212301202), we get a palindrome (52212533521225).

The spelling of 20210321220023 in words is "twenty trillion, two hundred ten billion, three hundred twenty-one million, two hundred twenty thousand, twenty-three".