20203211000 has 128 divisors (see below), whose sum is σ = 54207653760. Its totient is φ = 6903936000.

The previous prime is 20203210999. The next prime is 20203211011. The reversal of 20203211000 is 11230202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2186390 + ... + 2195610.

It is an arithmetic number, because the mean of its divisors is an integer number (423497295).

Almost surely, 2^20203211000 is an apocalyptic number.

20203211000 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 20203211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27103826880).

20203211000 is an abundant number, since it is smaller than the sum of its proper divisors (34004442760).

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

20203211000 is a wasteful number, since it uses less digits than its factorization.

20203211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9562 (or 9548 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20203211000 its reverse (11230202), we get a palindrome (20214441202).

The spelling of 20203211000 in words is "twenty billion, two hundred three million, two hundred eleven thousand".