20424211583 has 2 divisors, whose sum is σ = 20424211584. Its totient is φ = 20424211582.

The previous prime is 20424211567. The next prime is 20424211607. The reversal of 20424211583 is 38511242402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20424211583 - 2⁴ = 20424211567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20424211783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212105791 + 10212105792.

It is an arithmetic number, because the mean of its divisors is an integer number (10212105792).

Almost surely, 2^20424211583 is an apocalyptic number.

20424211583 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424211583 is an equidigital number, since it uses as much as digits as its factorization.

20424211583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 20424211583 its reverse (38511242402), we get a palindrome (58935453985).

The spelling of 20424211583 in words is "twenty billion, four hundred twenty-four million, two hundred eleven thousand, five hundred eighty-three".