20424320324 has 12 divisors (see below), whose sum is σ = 35777235648. Its totient is φ = 10202253000.

The previous prime is 20424320311. The next prime is 20424320363. The reversal of 20424320324 is 42302342402.

It is a happy number.

It is a super-4 number, since 4×20424320324⁴ (a number of 42 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20424320293 and 20424320302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2472152 + ... + 2480399.

It is an arithmetic number, because the mean of its divisors is an integer number (2981436304).

Almost surely, 2^20424320324 is an apocalyptic number.

It is an amenable number.

20424320324 is a deficient number, since it is larger than the sum of its proper divisors (15352915324).

20424320324 is a wasteful number, since it uses less digits than its factorization.

20424320324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953586 (or 4953584 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20424320324 its reverse (42302342402), we get a palindrome (62726662726).

The spelling of 20424320324 in words is "twenty billion, four hundred twenty-four million, three hundred twenty thousand, three hundred twenty-four".