20113340432 has 10 divisors (see below), whose sum is σ = 38969597118. Its totient is φ = 10056670208.

The previous prime is 20113340353. The next prime is 20113340447. The reversal of 20113340432 is 23404331102.

It can be written as a sum of positive squares in only one way, i.e., 17349104656 + 2764235776 = 131716^2 + 52576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20113340398 and 20113340407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628541873 + ... + 628541904.

Almost surely, 2^20113340432 is an apocalyptic number.

It is an amenable number.

20113340432 is a deficient number, since it is larger than the sum of its proper divisors (18856256686).

20113340432 is a wasteful number, since it uses less digits than its factorization.

20113340432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257083785 (or 1257083779 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20113340432 its reverse (23404331102), we get a palindrome (43517671534).

The spelling of 20113340432 in words is "twenty billion, one hundred thirteen million, three hundred forty thousand, four hundred thirty-two".