131320346 has 8 divisors (see below), whose sum is σ = 199011540. Its totient is φ = 64983168.

The previous prime is 131320339. The next prime is 131320369. The reversal of 131320346 is 643023131.

131320346 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 117961321 + 13359025 = 10861^2 + 3655^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338261 + ... + 338648.

Almost surely, 2^131320346 is an apocalyptic number.

131320346 is a deficient number, since it is larger than the sum of its proper divisors (67691194).

131320346 is an equidigital number, since it uses as much as digits as its factorization.

131320346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677008.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 131320346 is about 11459.5089772643. The cubic root of 131320346 is about 508.2889551034.

Adding to 131320346 its reverse (643023131), we get a palindrome (774343477).

The spelling of 131320346 in words is "one hundred thirty-one million, three hundred twenty thousand, three hundred forty-six".