131331211 has 8 divisors (see below), whose sum is σ = 150811200. Its totient is φ = 113108040.

The previous prime is 131331203. The next prime is 131331229. The reversal of 131331211 is 112133131.

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 131331211 - 2³ = 131331203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131332211) 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 7 ways as a sum of consecutive naturals, for example, 313981 + ... + 314398.

It is an arithmetic number, because the mean of its divisors is an integer number (18851400).

Almost surely, 2^131331211 is an apocalyptic number.

131331211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131331211 is a deficient number, since it is larger than the sum of its proper divisors (19479989).

131331211 is a wasteful number, since it uses less digits than its factorization.

131331211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628409.

The product of its digits is 54, while the sum is 16.

The square root of 131331211 is about 11459.9830279106. The cubic root of 131331211 is about 508.3029727515.

Adding to 131331211 its reverse (112133131), we get a palindrome (243464342).

The spelling of 131331211 in words is "one hundred thirty-one million, three hundred thirty-one thousand, two hundred eleven".