13231321031044 has 12 divisors (see below), whose sum is σ = 23472001007644. Its totient is φ = 6525035028864.

The previous prime is 13231321031041. The next prime is 13231321031069. The reversal of 13231321031044 is 44013012313231.

It can be written as a sum of positive squares in 2 ways, for example, as 11017885262400 + 2213435768644 = 3319320^2 + 1487762^2 .

It is not an unprimeable number, because it can be changed into a prime (13231321031041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22656371337 + ... + 22656371920.

Almost surely, 2^{13231321031044} is an apocalyptic number.

It is an amenable number.

13231321031044 is a deficient number, since it is larger than the sum of its proper divisors (10240679976600).

13231321031044 is a wasteful number, since it uses less digits than its factorization.

13231321031044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45312743334 (or 45312743332 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 13231321031044 its reverse (44013012313231), we get a palindrome (57244333344275).

The spelling of 13231321031044 in words is "thirteen trillion, two hundred thirty-one billion, three hundred twenty-one million, thirty-one thousand, forty-four".