20302300830 has 384 divisors, whose sum is σ = 62974402560. Its totient is φ = 4157153280.

The previous prime is 20302300819. The next prime is 20302300841. The reversal of 20302300830 is 3800320302.

It is an interprime number because it is at equal distance from previous prime (20302300819) and next prime (20302300841).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20302300797 and 20302300806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 56552191 + ... + 56552549.

It is an arithmetic number, because the mean of its divisors is an integer number (163995840).

Almost surely, 2^20302300830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20302300830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31487201280).

20302300830 is an abundant number, since it is smaller than the sum of its proper divisors (42672101730).

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

20302300830 is a wasteful number, since it uses less digits than its factorization.

20302300830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The spelling of 20302300830 in words is "twenty billion, three hundred two million, three hundred thousand, eight hundred thirty".