131304223 has 4 divisors (see below), whose sum is σ = 131371528. Its totient is φ = 131236920.

The previous prime is 131304221. The next prime is 131304233. The reversal of 131304223 is 322403131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131304223 - 2¹ = 131304221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131304223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131304221) 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 3 ways as a sum of consecutive naturals, for example, 30636 + ... + 34657.

It is an arithmetic number, because the mean of its divisors is an integer number (32842882).

Almost surely, 2^131304223 is an apocalyptic number.

131304223 is a deficient number, since it is larger than the sum of its proper divisors (67305).

131304223 is an equidigital number, since it uses as much as digits as its factorization.

131304223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67304.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131304223 is about 11458.8054787574. The cubic root of 131304223 is about 508.2681523401.

Adding to 131304223 its reverse (322403131), we get a palindrome (453707354).

The spelling of 131304223 in words is "one hundred thirty-one million, three hundred four thousand, two hundred twenty-three".