20320324430 has 32 divisors (see below), whose sum is σ = 41809051584. Its totient is φ = 6965761536.

The previous prime is 20320324373. The next prime is 20320324481. The reversal of 20320324430 is 3442302302.

It is a junction number, because it is equal to n+sod(n) for n = 20320324396 and 20320324405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443894 + ... + 487526.

It is an arithmetic number, because the mean of its divisors is an integer number (1306532862).

Almost surely, 2^20320324430 is an apocalyptic number.

20320324430 is an abundant number, since it is smaller than the sum of its proper divisors (21488727154).

20320324430 is a wasteful number, since it uses less digits than its factorization.

20320324430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50300.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20320324430 its reverse (3442302302), we get a palindrome (23762626732).

The spelling of 20320324430 in words is "twenty billion, three hundred twenty million, three hundred twenty-four thousand, four hundred thirty".