20424432243244 has 12 divisors (see below), whose sum is σ = 36246175530768. Its totient is φ = 10068382091600.

The previous prime is 20424432243169. The next prime is 20424432243253. The reversal of 20424432243244 is 44234223442402.

It is a junction number, because it is equal to n+sod(n) for n = 20424432243197 and 20424432243206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35958507187 + ... + 35958507754.

It is an arithmetic number, because the mean of its divisors is an integer number (3020514627564).

Almost surely, 2^{20424432243244} is an apocalyptic number.

It is an amenable number.

20424432243244 is a deficient number, since it is larger than the sum of its proper divisors (15821743287524).

20424432243244 is a wasteful number, since it uses less digits than its factorization.

20424432243244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71917015016 (or 71917015014 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 40.

Adding to 20424432243244 its reverse (44234223442402), we get a palindrome (64658655685646).

The spelling of 20424432243244 in words is "twenty trillion, four hundred twenty-four billion, four hundred thirty-two million, two hundred forty-three thousand, two hundred forty-four".