20441020431 has 8 divisors (see below), whose sum is σ = 29351208880. Its totient is φ = 12579089472.

The previous prime is 20441020423. The next prime is 20441020447. The reversal of 20441020431 is 13402014402.

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

It is not a de Polignac number, because 20441020431 - 2³ = 20441020423 is a prime.

It is a super-2 number, since 2×20441020431² (a number of 21 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 = 20441020398 and 20441020407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441020421) 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, 262064326 + ... + 262064403.

It is an arithmetic number, because the mean of its divisors is an integer number (3668901110).

Almost surely, 2^20441020431 is an apocalyptic number.

20441020431 is a deficient number, since it is larger than the sum of its proper divisors (8910188449).

20441020431 is a wasteful number, since it uses less digits than its factorization.

20441020431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524128745.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20441020431 its reverse (13402014402), we get a palindrome (33843034833).

The spelling of 20441020431 in words is "twenty billion, four hundred forty-one million, twenty thousand, four hundred thirty-one".