20210002000 has 160 divisors (see below), whose sum is σ = 49777064064. Its totient is φ = 7934976000.

The previous prime is 20210001991. The next prime is 20210002051. The reversal of 20210002000 is 20001202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35025712 + ... + 35026288.

Almost surely, 2^20210002000 is an apocalyptic number.

20210002000 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 20210002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24888532032).

20210002000 is an abundant number, since it is smaller than the sum of its proper divisors (29567062064).

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

20210002000 is a wasteful number, since it uses less digits than its factorization.

20210002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20210002000 its reverse (20001202), we get a palindrome (20230003202).

The spelling of 20210002000 in words is "twenty billion, two hundred ten million, two thousand".