20103404432 has 10 divisors (see below), whose sum is σ = 38950346118. Its totient is φ = 10051702208.

The previous prime is 20103404429. The next prime is 20103404443. The reversal of 20103404432 is 23440430102.

It can be written as a sum of positive squares in only one way, i.e., 18982226176 + 1121178256 = 137776^2 + 33484^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20103404398 and 20103404407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628231373 + ... + 628231404.

Almost surely, 2^20103404432 is an apocalyptic number.

It is an amenable number.

20103404432 is a deficient number, since it is larger than the sum of its proper divisors (18846941686).

20103404432 is a wasteful number, since it uses less digits than its factorization.

20103404432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256462785 (or 1256462779 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20103404432 its reverse (23440430102), we get a palindrome (43543834534).

The spelling of 20103404432 in words is "twenty billion, one hundred three million, four hundred four thousand, four hundred thirty-two".