13531012132 has 24 divisors (see below), whose sum is σ = 25863388992. Its totient is φ = 6142970400.

The previous prime is 13531012111. The next prime is 13531012193. The reversal of 13531012132 is 23121013531.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 150619 + ... + 223042.

It is an arithmetic number, because the mean of its divisors is an integer number (1077641208).

Almost surely, 2^13531012132 is an apocalyptic number.

It is an amenable number.

13531012132 is a deficient number, since it is larger than the sum of its proper divisors (12332376860).

13531012132 is a wasteful number, since it uses less digits than its factorization.

13531012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374499 (or 374497 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 13531012132 its reverse (23121013531), we get a palindrome (36652025663).

The spelling of 13531012132 in words is "thirteen billion, five hundred thirty-one million, twelve thousand, one hundred thirty-two".