13321312203000 has 128 divisors (see below), whose sum is σ = 41580979165440. Its totient is φ = 3550770000000.

The previous prime is 13321312202903. The next prime is 13321312203007. The reversal of 13321312203000 is 30221312331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321312203007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5766675 + ... + 7739325.

It is an arithmetic number, because the mean of its divisors is an integer number (324851399730).

Almost surely, 2^{13321312203000} is an apocalyptic number.

13321312203000 is a gapful number since it is divisible by the number (10) 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 13321312203000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20790489582720).

13321312203000 is an abundant number, since it is smaller than the sum of its proper divisors (28259666962440).

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

13321312203000 is a wasteful number, since it uses less digits than its factorization.

13321312203000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974926 (or 1974912 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13321312203000 its reverse (30221312331), we get a palindrome (13351533515331).

The spelling of 13321312203000 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twelve million, two hundred three thousand".