131311213 has 8 divisors (see below), whose sum is σ = 151675200. Its totient is φ = 112351680.

The previous prime is 131311199. The next prime is 131311241. The reversal of 131311213 is 312113131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131311213 - 2⁹ = 131310701 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 (131311273) 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 in 7 ways as a sum of consecutive naturals, for example, 350913 + ... + 351286.

It is an arithmetic number, because the mean of its divisors is an integer number (18959400).

Almost surely, 2^131311213 is an apocalyptic number.

It is an amenable number.

131311213 is a deficient number, since it is larger than the sum of its proper divisors (20363987).

131311213 is a wasteful number, since it uses less digits than its factorization.

131311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702227.

The product of its digits is 54, while the sum is 16.

The square root of 131311213 is about 11459.1104803122. The cubic root of 131311213 is about 508.2771714238.

Adding to 131311213 its reverse (312113131), we get a palindrome (443424344).

The spelling of 131311213 in words is "one hundred thirty-one million, three hundred eleven thousand, two hundred thirteen".