131324213 has 2 divisors, whose sum is σ = 131324214. Its totient is φ = 131324212.

The previous prime is 131324191. The next prime is 131324233. The reversal of 131324213 is 312423131.

It is an a-pointer prime, because the next prime (131324233) can be obtained adding 131324213 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84511249 + 46812964 = 9193^2 + 6842^2 .

It is an emirp because it is prime and its reverse (312423131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131324213 - 2¹⁰ = 131323189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131324233) 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 as a sum of consecutive naturals, namely, 65662106 + 65662107.

It is an arithmetic number, because the mean of its divisors is an integer number (65662107).

Almost surely, 2^131324213 is an apocalyptic number.

It is an amenable number.

131324213 is a deficient number, since it is larger than the sum of its proper divisors (1).

131324213 is an equidigital number, since it uses as much as digits as its factorization.

131324213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 131324213 is about 11459.6777005289. The cubic root of 131324213 is about 508.2939442620.

Adding to 131324213 its reverse (312423131), we get a palindrome (443747344).

The spelling of 131324213 in words is "one hundred thirty-one million, three hundred twenty-four thousand, two hundred thirteen".