13203561000344 has 128 divisors (see below), whose sum is σ = 31072496313600. Its totient is φ = 5170044464640.

The previous prime is 13203561000337. The next prime is 13203561000347. The reversal of 13203561000344 is 44300016530231.

It is a self number, because there is not a number n which added to its sum of digits gives 13203561000344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203561000347) 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, 3076907 + ... + 5989530.

It is an arithmetic number, because the mean of its divisors is an integer number (242753877450).

Almost surely, 2^{13203561000344} is an apocalyptic number.

It is an amenable number.

13203561000344 is an abundant number, since it is smaller than the sum of its proper divisors (17868935313256).

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

13203561000344 is a wasteful number, since it uses less digits than its factorization.

13203561000344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9066553 (or 9066549 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 13203561000344 its reverse (44300016530231), we get a palindrome (57503577530575).

The spelling of 13203561000344 in words is "thirteen trillion, two hundred three billion, five hundred sixty-one million, three hundred forty-four", and thus it is an aban number.