203211300000 has 144 divisors (see below), whose sum is σ = 666745388064. Its totient is φ = 54189600000.

The previous prime is 203211299983. The next prime is 203211300013. The reversal of 203211300000 is 3112302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38686 + ... + 638685.

It is an arithmetic number, because the mean of its divisors is an integer number (4630176306).

Almost surely, 2^203211300000 is an apocalyptic number.

203211300000 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 203211300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333372694032).

203211300000 is an abundant number, since it is smaller than the sum of its proper divisors (463534088064).

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

203211300000 is an frugal number, since it uses more digits than its factorization.

203211300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677409 (or 677381 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 203211300000 its reverse (3112302), we get a palindrome (203214412302).

The spelling of 203211300000 in words is "two hundred three billion, two hundred eleven million, three hundred thousand".