20023021441 has 16 divisors (see below), whose sum is σ = 20436278400. Its totient is φ = 19614672000.

The previous prime is 20023021439. The next prime is 20023021471. The reversal of 20023021441 is 14412032002.

It is a cyclic number.

It is not a de Polignac number, because 20023021441 - 2¹ = 20023021439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023021471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5656050 + ... + 5659588.

It is an arithmetic number, because the mean of its divisors is an integer number (1277267400).

Almost surely, 2^20023021441 is an apocalyptic number.

It is an amenable number.

20023021441 is a deficient number, since it is larger than the sum of its proper divisors (413256959).

20023021441 is a wasteful number, since it uses less digits than its factorization.

20023021441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20023021441 its reverse (14412032002), we get a palindrome (34435053443).

The spelling of 20023021441 in words is "twenty billion, twenty-three million, twenty-one thousand, four hundred forty-one".