20302321232130 has 128 divisors (see below), whose sum is σ = 56827808064000. Its totient is φ = 4640123480832.

The previous prime is 20302321232119. The next prime is 20302321232197. The reversal of 20302321232130 is 3123212320302.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20302321232130.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126167604 + ... + 126328416.

It is an arithmetic number, because the mean of its divisors is an integer number (443967250500).

Almost surely, 2^{20302321232130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20302321232130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28413904032000).

20302321232130 is an abundant number, since it is smaller than the sum of its proper divisors (36525486831870).

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

20302321232130 is a wasteful number, since it uses less digits than its factorization.

20302321232130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173113 (or 173099 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20302321232130 its reverse (3123212320302), we get a palindrome (23425533552432).

The spelling of 20302321232130 in words is "twenty trillion, three hundred two billion, three hundred twenty-one million, two hundred thirty-two thousand, one hundred thirty".