13543255234531 has 12 divisors (see below), whose sum is σ = 14889403911816. Its totient is φ = 12309555837920.

The previous prime is 13543255234519. The next prime is 13543255234603.

13543255234531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13543255234531 - 2⁵ = 13543255234499 is a prime.

It is a super-2 number, since 2×13543255234531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13543255234331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10738225 + ... + 11932978.

It is an arithmetic number, because the mean of its divisors is an integer number (1240783659318).

Almost surely, 2^{13543255234531} is an apocalyptic number.

13543255234531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13543255234531 is a deficient number, since it is larger than the sum of its proper divisors (1346148677285).

13543255234531 is a wasteful number, since it uses less digits than its factorization.

13543255234531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22676162 (or 22676151 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 46.

It can be divided in two parts, 1354325 and 5234531, that added together give a palindrome (6588856).

The spelling of 13543255234531 in words is "thirteen trillion, five hundred forty-three billion, two hundred fifty-five million, two hundred thirty-four thousand, five hundred thirty-one".