20134430432 has 24 divisors (see below), whose sum is σ = 40141432800. Its totient is φ = 9939780864.

The previous prime is 20134430431. The next prime is 20134430441. The reversal of 20134430432 is 23403443102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134430431) by changing a digit.

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, 3979757 + ... + 3984812.

It is an arithmetic number, because the mean of its divisors is an integer number (1672559700).

Almost surely, 2^20134430432 is an apocalyptic number.

It is an amenable number.

20134430432 is a deficient number, since it is larger than the sum of its proper divisors (20007002368).

20134430432 is an equidigital number, since it uses as much as digits as its factorization.

20134430432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7964658 (or 7964650 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20134430432 its reverse (23403443102), we get a palindrome (43537873534).

The spelling of 20134430432 in words is "twenty billion, one hundred thirty-four million, four hundred thirty thousand, four hundred thirty-two".