20122321230 has 96 divisors (see below), whose sum is σ = 57130995168. Its totient is φ = 4873286400.

The previous prime is 20122321229. The next prime is 20122321273. The reversal of 20122321230 is 3212322102.

20122321230 is a `hidden beast` number, since 201 + 2 + 232 + 1 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1040812 + ... + 1059968.

It is an arithmetic number, because the mean of its divisors is an integer number (595114533).

Almost surely, 2^20122321230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122321230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28565497584).

20122321230 is an abundant number, since it is smaller than the sum of its proper divisors (37008673938).

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

20122321230 is a wasteful number, since it uses less digits than its factorization.

20122321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20242 (or 20239 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20122321230 its reverse (3212322102), we get a palindrome (23334643332).

The spelling of 20122321230 in words is "twenty billion, one hundred twenty-two million, three hundred twenty-one thousand, two hundred thirty".