13531044531 has 8 divisors (see below), whose sum is σ = 18381796560. Its totient is φ = 8850494432.

The previous prime is 13531044521. The next prime is 13531044581. The reversal of 13531044531 is 13544013531.

13531044531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13531044531 - 2⁶ = 13531044467 is a prime.

It is a super-2 number, since 2×13531044531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13531044521) 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 7 ways as a sum of consecutive naturals, for example, 42550296 + ... + 42550613.

It is an arithmetic number, because the mean of its divisors is an integer number (2297724570).

Almost surely, 2^13531044531 is an apocalyptic number.

13531044531 is a deficient number, since it is larger than the sum of its proper divisors (4850752029).

13531044531 is an equidigital number, since it uses as much as digits as its factorization.

13531044531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85100965.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 13531044531 in words is "thirteen billion, five hundred thirty-one million, forty-four thousand, five hundred thirty-one".