13440132321144 has 32 divisors (see below), whose sum is σ = 34315231461120. Its totient is φ = 4384724019296.

The previous prime is 13440132321127. The next prime is 13440132321179. The reversal of 13440132321144 is 44112323104431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5957504334 + ... + 5957506589.

It is an arithmetic number, because the mean of its divisors is an integer number (1072350983160).

Almost surely, 2^{13440132321144} is an apocalyptic number.

It is an amenable number.

13440132321144 is an abundant number, since it is smaller than the sum of its proper divisors (20875099139976).

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

13440132321144 is a wasteful number, since it uses less digits than its factorization.

13440132321144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11915010979 (or 11915010975 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 13440132321144 its reverse (44112323104431), we get a palindrome (57552455425575).

The spelling of 13440132321144 in words is "thirteen trillion, four hundred forty billion, one hundred thirty-two million, three hundred twenty-one thousand, one hundred forty-four".