20423014443201 has 4 divisors (see below), whose sum is σ = 27230685924272. Its totient is φ = 13615342962132.

The previous prime is 20423014443163. The next prime is 20423014443217. The reversal of 20423014443201 is 10234441032402.

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 not a de Polignac number, because 20423014443201 - 2¹¹ = 20423014441153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20423014443281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3403835740531 + ... + 3403835740536.

It is an arithmetic number, because the mean of its divisors is an integer number (6807671481068).

Almost surely, 2^{20423014443201} is an apocalyptic number.

It is an amenable number.

20423014443201 is a deficient number, since it is larger than the sum of its proper divisors (6807671481071).

20423014443201 is an equidigital number, since it uses as much as digits as its factorization.

20423014443201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807671481070.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20423014443201 its reverse (10234441032402), we get a palindrome (30657455475603).

The spelling of 20423014443201 in words is "twenty trillion, four hundred twenty-three billion, fourteen million, four hundred forty-three thousand, two hundred one".