20302223130 has 160 divisors (see below), whose sum is σ = 63412905600. Its totient is φ = 4564356480.

The previous prime is 20302223023. The next prime is 20302223141. The reversal of 20302223130 is 3132220302.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 316521 + ... + 375219.

It is an arithmetic number, because the mean of its divisors is an integer number (396330660).

Almost surely, 2^20302223130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20302223130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31706452800).

20302223130 is an abundant number, since it is smaller than the sum of its proper divisors (43110682470).

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

20302223130 is a wasteful number, since it uses less digits than its factorization.

20302223130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58786 (or 58777 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20302223130 its reverse (3132220302), we get a palindrome (23434443432).

The spelling of 20302223130 in words is "twenty billion, three hundred two million, two hundred twenty-three thousand, one hundred thirty".