13231115344 has 40 divisors (see below), whose sum is σ = 26344433888. Its totient is φ = 6432773760.

The previous prime is 13231115333. The next prime is 13231115389. The reversal of 13231115344 is 44351113231.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1099279 + ... + 1111249.

Almost surely, 2^13231115344 is an apocalyptic number.

It is an amenable number.

13231115344 is a deficient number, since it is larger than the sum of its proper divisors (13113318544).

13231115344 is a wasteful number, since it uses less digits than its factorization.

13231115344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13883 (or 13877 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

Adding to 13231115344 its reverse (44351113231), we get a palindrome (57582228575).

The spelling of 13231115344 in words is "thirteen billion, two hundred thirty-one million, one hundred fifteen thousand, three hundred forty-four".