203211100000 has 72 divisors (see below), whose sum is σ = 500058056736. Its totient is φ = 81284400000.

The previous prime is 203211099997. The next prime is 203211100039. The reversal of 203211100000 is 1112302.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 203211100000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916056 + ... + 1116055.

It is an arithmetic number, because the mean of its divisors is an integer number (6945250788).

Almost surely, 2^203211100000 is an apocalyptic number.

203211100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203211100000 is an abundant number, since it is smaller than the sum of its proper divisors (296846956736).

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

203211100000 is an frugal number, since it uses more digits than its factorization.

203211100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032146 (or 2032118 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 203211100000 its reverse (1112302), we get a palindrome (203212212302).

The spelling of 203211100000 in words is "two hundred three billion, two hundred eleven million, one hundred thousand".