131331323 has 8 divisors (see below), whose sum is σ = 136545360. Its totient is φ = 126213120.

The previous prime is 131331293. The next prime is 131331329. The reversal of 131331323 is 323133131.

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 131331323 - 2¹⁸ = 131069179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131331295 and 131331304.

It is not an unprimeable number, because it can be changed into a prime (131331329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21158 + ... + 26651.

It is an arithmetic number, because the mean of its divisors is an integer number (17068170).

Almost surely, 2^131331323 is an apocalyptic number.

131331323 is a deficient number, since it is larger than the sum of its proper divisors (5214037).

131331323 is an equidigital number, since it uses as much as digits as its factorization.

131331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47917.

The product of its digits is 486, while the sum is 20.

The square root of 131331323 is about 11459.9879144788. The cubic root of 131331323 is about 508.3031172460.

Adding to 131331323 its reverse (323133131), we get a palindrome (454464454).

The spelling of 131331323 in words is "one hundred thirty-one million, three hundred thirty-one thousand, three hundred twenty-three".