20201323230221 has 8 divisors (see below), whose sum is σ = 23087417761920. Its totient is φ = 17315276501808.

The previous prime is 20201323230203. The next prime is 20201323230377. The reversal of 20201323230221 is 12203232310202.

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 20201323230221 - 2¹⁴ = 20201323213837 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 (20201323260221) 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, 11040641 + ... + 12739638.

It is an arithmetic number, because the mean of its divisors is an integer number (2885927220240).

Almost surely, 2^{20201323230221} is an apocalyptic number.

It is an amenable number.

20201323230221 is a deficient number, since it is larger than the sum of its proper divisors (2886094531699).

20201323230221 is a wasteful number, since it uses less digits than its factorization.

20201323230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23901643.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20201323230221 its reverse (12203232310202), we get a palindrome (32404555540423).

The spelling of 20201323230221 in words is "twenty trillion, two hundred one billion, three hundred twenty-three million, two hundred thirty thousand, two hundred twenty-one".