203323213000000 has 392 divisors, whose sum is σ = 535284158431320. Its totient is φ = 76360704000000.

The previous prime is 203323212999971. The next prime is 203323213000031. The reversal of 203323213000000 is 312323302.

It is a happy number.

It can be written as a sum of positive squares in 28 ways, for example, as 67629044321344 + 135694168678656 = 8223688^2 + 11648784^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 7156985796 + ... + 7157014204.

Almost surely, 2^{203323213000000} is an apocalyptic number.

203323213000000 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 203323213000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267642079215660).

203323213000000 is an abundant number, since it is smaller than the sum of its proper divisors (331960945431320).

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

203323213000000 is an frugal number, since it uses more digits than its factorization.

203323213000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28889 (or 28854 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 203323213000000 its reverse (312323302), we get a palindrome (203323525323302).

The spelling of 203323213000000 in words is "two hundred three trillion, three hundred twenty-three billion, two hundred thirteen million", and thus it is an aban number.