20300030000 has 100 divisors (see below), whose sum is σ = 51285870768. Its totient is φ = 7766880000.

The previous prime is 20300029973. The next prime is 20300030011. The reversal of 20300030000 is 3000302.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20300030000.

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 19 ways as a sum of consecutive naturals, for example, 185870 + ... + 274130.

Almost surely, 2^20300030000 is an apocalyptic number.

20300030000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20300030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25642935384).

20300030000 is an abundant number, since it is smaller than the sum of its proper divisors (30985840768).

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

20300030000 is an equidigital number, since it uses as much as digits as its factorization.

20300030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88312 (or 88291 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 8.

Adding to 20300030000 its reverse (3000302), we get a palindrome (20303030302).

The spelling of 20300030000 in words is "twenty billion, three hundred million, thirty thousand".