20020011000 has 256 divisors, whose sum is σ = 68440619520. Its totient is φ = 4832000000.

The previous prime is 20020010963. The next prime is 20020011043. The reversal of 20020011000 is 11002002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

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

It is a self number, because there is not a number n which added to its sum of digits gives 20020011000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8281792 + ... + 8284208.

It is an arithmetic number, because the mean of its divisors is an integer number (267346170).

Almost surely, 2^20020011000 is an apocalyptic number.

20020011000 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 20020011000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34220309760).

20020011000 is an abundant number, since it is smaller than the sum of its proper divisors (48420608520).

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

20020011000 is a wasteful number, since it uses less digits than its factorization.

20020011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703 (or 2689 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20020011000 its reverse (11002002), we get a palindrome (20031013002).

It can be divided in two parts, 2002001 and 1000, that added together give a triangular number (2003001 = T₂₀₀₁).

The spelling of 20020011000 in words is "twenty billion, twenty million, eleven thousand".