20424103234 has 16 divisors (see below), whose sum is σ = 31013147160. Its totient is φ = 10086630400.

The previous prime is 20424103213. The next prime is 20424103243. The reversal of 20424103234 is 43230142402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7700940025 + 12723163209 = 87755^2 + 112797^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20424103199 and 20424103208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109434 + ... + 229834.

Almost surely, 2^20424103234 is an apocalyptic number.

20424103234 is a deficient number, since it is larger than the sum of its proper divisors (10589043926).

20424103234 is a wasteful number, since it uses less digits than its factorization.

20424103234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121445.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20424103234 its reverse (43230142402), we get a palindrome (63654245636).

The spelling of 20424103234 in words is "twenty billion, four hundred twenty-four million, one hundred three thousand, two hundred thirty-four".