20320336230 has 16 divisors (see below), whose sum is σ = 48768807024. Its totient is φ = 5418756320.

The previous prime is 20320336129. The next prime is 20320336241. The reversal of 20320336230 is 3263302302.

It is a super-2 number, since 2×20320336230² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20320336230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338672241 + ... + 338672300.

It is an arithmetic number, because the mean of its divisors is an integer number (3048050439).

Almost surely, 2^20320336230 is an apocalyptic number.

20320336230 is an abundant number, since it is smaller than the sum of its proper divisors (28448470794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20320336230 is a wasteful number, since it uses less digits than its factorization.

20320336230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677344551.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20320336230 its reverse (3263302302), we get a palindrome (23583638532).

The spelling of 20320336230 in words is "twenty billion, three hundred twenty million, three hundred thirty-six thousand, two hundred thirty".