131324113 has 4 divisors (see below), whose sum is σ = 131351220. Its totient is φ = 131297008.

The previous prime is 131324111. The next prime is 131324117. The reversal of 131324113 is 311423131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311423131 = 347 ⋅897473.

It can be written as a sum of positive squares in 2 ways, for example, as 95707089 + 35617024 = 9783^2 + 5968^2 .

It is a cyclic number.

It is not a de Polignac number, because 131324113 - 2¹ = 131324111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131324111) 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, 4078 + ... + 16711.

It is an arithmetic number, because the mean of its divisors is an integer number (32837805).

Almost surely, 2^131324113 is an apocalyptic number.

It is an amenable number.

131324113 is a deficient number, since it is larger than the sum of its proper divisors (27107).

131324113 is an equidigital number, since it uses as much as digits as its factorization.

131324113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27106.

The product of its digits is 216, while the sum is 19.

The square root of 131324113 is about 11459.6733374036. The cubic root of 131324113 is about 508.2938152444.

Adding to 131324113 its reverse (311423131), we get a palindrome (442747244).

The spelling of 131324113 in words is "one hundred thirty-one million, three hundred twenty-four thousand, one hundred thirteen".