131343343 has 4 divisors (see below), whose sum is σ = 139069440. Its totient is φ = 123617248.

The previous prime is 131343341. The next prime is 131343347. The reversal of 131343343 is 343343131.

It is a happy number.

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 131343343 - 2¹ = 131343341 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 (131343341) 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, 3863023 + ... + 3863056.

It is an arithmetic number, because the mean of its divisors is an integer number (34767360).

Almost surely, 2^131343343 is an apocalyptic number.

131343343 is a deficient number, since it is larger than the sum of its proper divisors (7726097).

131343343 is an equidigital number, since it uses as much as digits as its factorization.

131343343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726096.

The product of its digits is 3888, while the sum is 25.

The square root of 131343343 is about 11460.5123358426. The cubic root of 131343343 is about 508.3186241257.

Adding to 131343343 its reverse (343343131), we get a palindrome (474686474).

The spelling of 131343343 in words is "one hundred thirty-one million, three hundred forty-three thousand, three hundred forty-three".