20441330421 has 8 divisors (see below), whose sum is σ = 27255785760. Its totient is φ = 13627214352.

The previous prime is 20441330419. The next prime is 20441330453. The reversal of 20441330421 is 12403314402.

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

It is not a de Polignac number, because 20441330421 - 2¹ = 20441330419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20441330391 and 20441330400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441330471) 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, 143815 + ... + 248123.

It is an arithmetic number, because the mean of its divisors is an integer number (3406973220).

Almost surely, 2^20441330421 is an apocalyptic number.

It is an amenable number.

20441330421 is a deficient number, since it is larger than the sum of its proper divisors (6814455339).

20441330421 is a wasteful number, since it uses less digits than its factorization.

20441330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169635.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20441330421 its reverse (12403314402), we get a palindrome (32844644823).

The spelling of 20441330421 in words is "twenty billion, four hundred forty-one million, three hundred thirty thousand, four hundred twenty-one".