131342523413 has 4 divisors (see below), whose sum is σ = 139068554220. Its totient is φ = 123616492608.

The previous prime is 131342523409. The next prime is 131342523419. The reversal of 131342523413 is 314325243131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314325243131 = 19 ⋅16543433849.

It can be written as a sum of positive squares in 2 ways, for example, as 55782409489 + 75560113924 = 236183^2 + 274882^2 .

It is a cyclic number.

It is not a de Polignac number, because 131342523413 - 2² = 131342523409 is a prime.

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 131342523413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131342523419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3863015378 + ... + 3863015411.

It is an arithmetic number, because the mean of its divisors is an integer number (34767138555).

Almost surely, 2^131342523413 is an apocalyptic number.

It is an amenable number.

131342523413 is a deficient number, since it is larger than the sum of its proper divisors (7726030807).

131342523413 is an equidigital number, since it uses as much as digits as its factorization.

131342523413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726030806.

The product of its digits is 25920, while the sum is 32.

Adding to 131342523413 its reverse (314325243131), we get a palindrome (445667766544).

The spelling of 131342523413 in words is "one hundred thirty-one billion, three hundred forty-two million, five hundred twenty-three thousand, four hundred thirteen".