20320430024 has 8 divisors (see below), whose sum is σ = 38100806310. Its totient is φ = 10160215008.

The previous prime is 20320430003. The next prime is 20320430041. The reversal of 20320430024 is 42003402302.

It can be written as a sum of positive squares in only one way, i.e., 18368380900 + 1952049124 = 135530^2 + 44182^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20320429978 and 20320430005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270026869 + ... + 1270026884.

Almost surely, 2^20320430024 is an apocalyptic number.

It is an amenable number.

20320430024 is a deficient number, since it is larger than the sum of its proper divisors (17780376286).

20320430024 is a wasteful number, since it uses less digits than its factorization.

20320430024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540053759 (or 2540053755 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20320430024 its reverse (42003402302), we get a palindrome (62323832326).

The spelling of 20320430024 in words is "twenty billion, three hundred twenty million, four hundred thirty thousand, twenty-four".