20320430005 has 8 divisors (see below), whose sum is σ = 24422442912. Its totient is φ = 16231059408.

The previous prime is 20320430003. The next prime is 20320430041. The reversal of 20320430005 is 50003402302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20320430005 - 2¹ = 20320430003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320430003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3157039 + ... + 3163468.

It is an arithmetic number, because the mean of its divisors is an integer number (3052805364).

Almost surely, 2^20320430005 is an apocalyptic number.

It is an amenable number.

20320430005 is a deficient number, since it is larger than the sum of its proper divisors (4102012907).

20320430005 is an equidigital number, since it uses as much as digits as its factorization.

20320430005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321155.

The product of its (nonzero) digits is 720, while the sum is 19.

Adding to 20320430005 its reverse (50003402302), we get a palindrome (70323832307).

The spelling of 20320430005 in words is "twenty billion, three hundred twenty million, four hundred thirty thousand, five".