131304213 has 16 divisors (see below), whose sum is σ = 194976000. Its totient is φ = 87333120.

The previous prime is 131304191. The next prime is 131304221. The reversal of 131304213 is 312403131.

It is not a de Polignac number, because 131304213 - 2⁶ = 131304149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131304233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6708 + ... + 17538.

It is an arithmetic number, because the mean of its divisors is an integer number (12186000).

Almost surely, 2^131304213 is an apocalyptic number.

It is an amenable number.

131304213 is a deficient number, since it is larger than the sum of its proper divisors (63671787).

131304213 is a wasteful number, since it uses less digits than its factorization.

131304213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11289 (or 11283 counting only the distinct ones).

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

The square root of 131304213 is about 11458.8050424117. The cubic root of 131304213 is about 508.2681394370.

Adding to 131304213 its reverse (312403131), we get a palindrome (443707344).

The spelling of 131304213 in words is "one hundred thirty-one million, three hundred four thousand, two hundred thirteen".