20424211711 has 2 divisors, whose sum is σ = 20424211712. Its totient is φ = 20424211710.

The previous prime is 20424211673. The next prime is 20424211721. The reversal of 20424211711 is 11711242402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20424211711 - 2⁷ = 20424211583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20424211721) 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 as a sum of consecutive naturals, namely, 10212105855 + 10212105856.

It is an arithmetic number, because the mean of its divisors is an integer number (10212105856).

Almost surely, 2^20424211711 is an apocalyptic number.

20424211711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424211711 is an equidigital number, since it uses as much as digits as its factorization.

20424211711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The spelling of 20424211711 in words is "twenty billion, four hundred twenty-four million, two hundred eleven thousand, seven hundred eleven".