20441003431 has 4 divisors (see below), whose sum is σ = 20482977232. Its totient is φ = 20399029632.

The previous prime is 20441003413. The next prime is 20441003489. The reversal of 20441003431 is 13430014402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20441003431 - 2⁵ = 20441003399 is a prime.

It is a super-2 number, since 2×20441003431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441000431) 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 3 ways as a sum of consecutive naturals, for example, 20986170 + ... + 20987143.

It is an arithmetic number, because the mean of its divisors is an integer number (5120744308).

Almost surely, 2^20441003431 is an apocalyptic number.

20441003431 is a deficient number, since it is larger than the sum of its proper divisors (41973801).

20441003431 is an equidigital number, since it uses as much as digits as its factorization.

20441003431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41973800.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20441003431 its reverse (13430014402), we get a palindrome (33871017833).

The spelling of 20441003431 in words is "twenty billion, four hundred forty-one million, three thousand, four hundred thirty-one".