13531044355 has 4 divisors (see below), whose sum is σ = 16237253232. Its totient is φ = 10824835480.

The previous prime is 13531044343. The next prime is 13531044361. The reversal of 13531044355 is 55344013531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13531044355 - 2⁵ = 13531044323 is a prime.

It is a super-2 number, since 2×13531044355² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13531044355.

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, 1353104431 + ... + 1353104440.

It is an arithmetic number, because the mean of its divisors is an integer number (4059313308).

Almost surely, 2^13531044355 is an apocalyptic number.

13531044355 is a deficient number, since it is larger than the sum of its proper divisors (2706208877).

13531044355 is an equidigital number, since it uses as much as digits as its factorization.

13531044355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706208876.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 13531044355 its reverse (55344013531), we get a palindrome (68875057886).

The spelling of 13531044355 in words is "thirteen billion, five hundred thirty-one million, forty-four thousand, three hundred fifty-five".