20441001443 has 2 divisors, whose sum is σ = 20441001444. Its totient is φ = 20441001442.

The previous prime is 20441001437. The next prime is 20441001551. The reversal of 20441001443 is 34410014402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20441001443 - 2⁶ = 20441001379 is a prime.

It is not a weakly prime, because it can be changed into another prime (20441004443) 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 as a sum of consecutive naturals, namely, 10220500721 + 10220500722.

It is an arithmetic number, because the mean of its divisors is an integer number (10220500722).

Almost surely, 2^20441001443 is an apocalyptic number.

20441001443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441001443 is an equidigital number, since it uses as much as digits as its factorization.

20441001443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20441001443 its reverse (34410014402), we get a palindrome (54851015845).

The spelling of 20441001443 in words is "twenty billion, four hundred forty-one million, one thousand, four hundred forty-three".