13431502225144 has 32 divisors (see below), whose sum is σ = 25312129920000. Its totient is φ = 6681604941792.

The previous prime is 13431502225139. The next prime is 13431502225157. The reversal of 13431502225144 is 44152220513431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27392517 + ... + 27878539.

It is an arithmetic number, because the mean of its divisors is an integer number (791004060000).

Almost surely, 2^{13431502225144} is an apocalyptic number.

It is an amenable number.

13431502225144 is a deficient number, since it is larger than the sum of its proper divisors (11880627694856).

13431502225144 is a wasteful number, since it uses less digits than its factorization.

13431502225144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503587 (or 503583 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 13431502225144 its reverse (44152220513431), we get a palindrome (57583722738575).

The spelling of 13431502225144 in words is "thirteen trillion, four hundred thirty-one billion, five hundred two million, two hundred twenty-five thousand, one hundred forty-four".