13531230232 has 16 divisors (see below), whose sum is σ = 27322676640. Its totient is φ = 6245183136.

The previous prime is 13531230217. The next prime is 13531230253. The reversal of 13531230232 is 23203213531.

It is a junction number, because it is equal to n+sod(n) for n = 13531230197 and 13531230206.

It is a congruent number.

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, 65053888 + ... + 65054095.

It is an arithmetic number, because the mean of its divisors is an integer number (1707667290).

Almost surely, 2^13531230232 is an apocalyptic number.

It is an amenable number.

13531230232 is an abundant number, since it is smaller than the sum of its proper divisors (13791446408).

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

13531230232 is a wasteful number, since it uses less digits than its factorization.

13531230232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130108002 (or 130107998 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 13531230232 its reverse (23203213531), we get a palindrome (36734443763).

The spelling of 13531230232 in words is "thirteen billion, five hundred thirty-one million, two hundred thirty thousand, two hundred thirty-two".