131312524543 has 4 divisors (see below), whose sum is σ = 131315745400. Its totient is φ = 131309303688.

The previous prime is 131312524493. The next prime is 131312524549. The reversal of 131312524543 is 345425213131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345425213131 = 269 ⋅1284108599.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131312524543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131312524499 and 131312524508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131312524549) 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 3 ways as a sum of consecutive naturals, for example, 1548480 + ... + 1631077.

It is an arithmetic number, because the mean of its divisors is an integer number (32828936350).

Almost surely, 2^131312524543 is an apocalyptic number.

131312524543 is a deficient number, since it is larger than the sum of its proper divisors (3220857).

131312524543 is an equidigital number, since it uses as much as digits as its factorization.

131312524543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220856.

The product of its digits is 43200, while the sum is 34.

Adding to 131312524543 its reverse (345425213131), we get a palindrome (476737737674).

The spelling of 131312524543 in words is "one hundred thirty-one billion, three hundred twelve million, five hundred twenty-four thousand, five hundred forty-three".