13520344112 has 40 divisors (see below), whose sum is σ = 29185132032. Its totient is φ = 6014849600.

The previous prime is 13520344111. The next prime is 13520344129. The reversal of 13520344112 is 21144302531.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13520344111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808964 + ... + 825507.

Almost surely, 2^13520344112 is an apocalyptic number.

It is an amenable number.

13520344112 is an abundant number, since it is smaller than the sum of its proper divisors (15664787920).

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

13520344112 is a wasteful number, since it uses less digits than its factorization.

13520344112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634537 (or 1634531 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 13520344112 its reverse (21144302531), we get a palindrome (34664646643).

The spelling of 13520344112 in words is "thirteen billion, five hundred twenty million, three hundred forty-four thousand, one hundred twelve".