20424011189 has 2 divisors, whose sum is σ = 20424011190. Its totient is φ = 20424011188.

The previous prime is 20424011149. The next prime is 20424011227. The reversal of 20424011189 is 98111042402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20343316900 + 80694289 = 142630^2 + 8983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20424011189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20424011149) 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, 10212005594 + 10212005595.

It is an arithmetic number, because the mean of its divisors is an integer number (10212005595).

Almost surely, 2^20424011189 is an apocalyptic number.

It is an amenable number.

20424011189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424011189 is an equidigital number, since it uses as much as digits as its factorization.

20424011189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 20424011189 in words is "twenty billion, four hundred twenty-four million, eleven thousand, one hundred eighty-nine".