13531440324 has 12 divisors (see below), whose sum is σ = 31573360784. Its totient is φ = 4510480104.

The previous prime is 13531440319. The next prime is 13531440331. The reversal of 13531440324 is 42304413531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13531440291 and 13531440300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563810002 + ... + 563810025.

Almost surely, 2^13531440324 is an apocalyptic number.

It is an amenable number.

13531440324 is an abundant number, since it is smaller than the sum of its proper divisors (18041920460).

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

13531440324 is a wasteful number, since it uses less digits than its factorization.

13531440324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127620034 (or 1127620032 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 13531440324 its reverse (42304413531), we get a palindrome (55835853855).

The spelling of 13531440324 in words is "thirteen billion, five hundred thirty-one million, four hundred forty thousand, three hundred twenty-four".