20424811711 has 2 divisors, whose sum is σ = 20424811712. Its totient is φ = 20424811710.

The previous prime is 20424811709. The next prime is 20424811733. The reversal of 20424811711 is 11711842402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20424811711 - 2¹ = 20424811709 is a prime.

Together with 20424811709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20424211711) 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, 10212405855 + 10212405856.

It is an arithmetic number, because the mean of its divisors is an integer number (10212405856).

Almost surely, 2^20424811711 is an apocalyptic number.

20424811711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424811711 is an equidigital number, since it uses as much as digits as its factorization.

20424811711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

The spelling of 20424811711 in words is "twenty billion, four hundred twenty-four million, eight hundred eleven thousand, seven hundred eleven".