203213000000 has 98 divisors (see below), whose sum is σ = 504059524518. Its totient is φ = 81284800000.

The previous prime is 203212999999. The next prime is 203213000009. The reversal of 203213000000 is 312302.

It can be written as a sum of positive squares in 7 ways, for example, as 200983649344 + 2229350656 = 448312^2 + 47216^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203213000009) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 898394 + ... + 1101606.

Almost surely, 2^203213000000 is an apocalyptic number.

203213000000 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 203213000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252029762259).

203213000000 is an abundant number, since it is smaller than the sum of its proper divisors (300846524518).

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

203213000000 is an frugal number, since it uses more digits than its factorization.

203213000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203255 (or 203220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 203213000000 its reverse (312302), we get a palindrome (203213312302).

The spelling of 203213000000 in words is "two hundred three billion, two hundred thirteen million", and thus it is an aban number.