13513231532 has 12 divisors (see below), whose sum is σ = 23650337256. Its totient is φ = 6755992320.

The previous prime is 13513231531. The next prime is 13513231583. The reversal of 13513231532 is 23513231531.

It is a happy number.

13513231532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13513231495 and 13513231504.

It is not an unprimeable number, because it can be changed into a prime (13513231531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105269 + ... + 195212.

It is an arithmetic number, because the mean of its divisors is an integer number (1970861438).

Almost surely, 2^13513231532 is an apocalyptic number.

It is an amenable number.

13513231532 is a deficient number, since it is larger than the sum of its proper divisors (10137105724).

13513231532 is a wasteful number, since it uses less digits than its factorization.

13513231532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311728 (or 311726 counting only the distinct ones).

The product of its digits is 8100, while the sum is 29.

Subtracting 13513231532 from its reverse (23513231531), we obtain a palindrome (9999999999).

The spelling of 13513231532 in words is "thirteen billion, five hundred thirteen million, two hundred thirty-one thousand, five hundred thirty-two".