131340213 has 12 divisors (see below), whose sum is σ = 192313420. Its totient is φ = 86360256.

The previous prime is 131340169. The next prime is 131340247. The reversal of 131340213 is 312043131.

It can be written as a sum of positive squares in 2 ways, for example, as 113167044 + 18173169 = 10638^2 + 4263^2 .

It is not a de Polignac number, because 131340213 - 2¹⁰ = 131339189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131340263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99298 + ... + 100611.

Almost surely, 2^131340213 is an apocalyptic number.

It is an amenable number.

131340213 is a deficient number, since it is larger than the sum of its proper divisors (60973207).

131340213 is a wasteful number, since it uses less digits than its factorization.

131340213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199988 (or 199985 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131340213 is about 11460.3757791793. The cubic root of 131340213 is about 508.3145862357.

Adding to 131340213 its reverse (312043131), we get a palindrome (443383344).

The spelling of 131340213 in words is "one hundred thirty-one million, three hundred forty thousand, two hundred thirteen".