20302002000 has 400 divisors, whose sum is σ = 83813064192. Its totient is φ = 4640198400.

The previous prime is 20302001971. The next prime is 20302002001. The reversal of 20302002000 is 20020302.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302002001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1125049 + ... + 1142951.

Almost surely, 2^20302002000 is an apocalyptic number.

20302002000 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 20302002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41906532096).

20302002000 is an abundant number, since it is smaller than the sum of its proper divisors (63511062192).

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

20302002000 is a wasteful number, since it uses less digits than its factorization.

20302002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17945 (or 17920 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

Adding to 20302002000 its reverse (20020302), we get a palindrome (20322022302).

The spelling of 20302002000 in words is "twenty billion, three hundred two million, two thousand".