20020003000 has 64 divisors (see below), whose sum is σ = 46998169920. Its totient is φ = 7982128000.

The previous prime is 20020002997. The next prime is 20020003021. The reversal of 20020003000 is 30002002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278814 + ... + 343186.

It is an arithmetic number, because the mean of its divisors is an integer number (734346405).

Almost surely, 2^20020003000 is an apocalyptic number.

20020003000 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 20020003000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23499084960).

20020003000 is an abundant number, since it is smaller than the sum of its proper divisors (26978166920).

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

20020003000 is a wasteful number, since it uses less digits than its factorization.

20020003000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64705 (or 64691 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 7.

Adding to 20020003000 its reverse (30002002), we get a palindrome (20050005002).

The spelling of 20020003000 in words is "twenty billion, twenty million, three thousand".