13523453243 has 16 divisors (see below), whose sum is σ = 14679114240. Its totient is φ = 12416328000.

The previous prime is 13523453239. The next prime is 13523453261. The reversal of 13523453243 is 34235432531.

13523453243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13523453243 - 2² = 13523453239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13523453263) 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 15 ways as a sum of consecutive naturals, for example, 60146 + ... + 175112.

It is an arithmetic number, because the mean of its divisors is an integer number (917444640).

Almost surely, 2^13523453243 is an apocalyptic number.

13523453243 is a deficient number, since it is larger than the sum of its proper divisors (1155660997).

13523453243 is a wasteful number, since it uses less digits than its factorization.

13523453243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115178.

The product of its digits is 129600, while the sum is 35.

Adding to 13523453243 its reverse (34235432531), we get a palindrome (47758885774).

The spelling of 13523453243 in words is "thirteen billion, five hundred twenty-three million, four hundred fifty-three thousand, two hundred forty-three".