13531444412 has 12 divisors (see below), whose sum is σ = 23681254296. Its totient is φ = 6765371760.

The previous prime is 13531444411. The next prime is 13531444447. The reversal of 13531444412 is 21444413531.

13531444412 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 (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531444411) 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, 11798 + ... + 164930.

It is an arithmetic number, because the mean of its divisors is an integer number (1973437858).

Almost surely, 2^13531444412 is an apocalyptic number.

It is an amenable number.

13531444412 is a deficient number, since it is larger than the sum of its proper divisors (10149809884).

13531444412 is a wasteful number, since it uses less digits than its factorization.

13531444412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175228 (or 175226 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

Adding to 13531444412 its reverse (21444413531), we get a palindrome (34975857943).

The spelling of 13531444412 in words is "thirteen billion, five hundred thirty-one million, four hundred forty-four thousand, four hundred twelve".