20441420011 has 2 divisors, whose sum is σ = 20441420012. Its totient is φ = 20441420010.

The previous prime is 20441419991. The next prime is 20441420029. The reversal of 20441420011 is 11002414402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20441420011 - 2¹¹ = 20441417963 is a prime.

It is a super-2 number, since 2×20441420011² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20441420411) 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, 10220710005 + 10220710006.

It is an arithmetic number, because the mean of its divisors is an integer number (10220710006).

Almost surely, 2^20441420011 is an apocalyptic number.

20441420011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441420011 is an equidigital number, since it uses as much as digits as its factorization.

20441420011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20441420011 its reverse (11002414402), we get a palindrome (31443834413).

The spelling of 20441420011 in words is "twenty billion, four hundred forty-one million, four hundred twenty thousand, eleven".