131136211 has 2 divisors, whose sum is σ = 131136212. Its totient is φ = 131136210.

The previous prime is 131136209. The next prime is 131136259. The reversal of 131136211 is 112631131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131136211 - 2¹ = 131136209 is a prime.

Together with 131136209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131136611) 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 as a sum of consecutive naturals, namely, 65568105 + 65568106.

It is an arithmetic number, because the mean of its divisors is an integer number (65568106).

Almost surely, 2^131136211 is an apocalyptic number.

131136211 is a deficient number, since it is larger than the sum of its proper divisors (1).

131136211 is an equidigital number, since it uses as much as digits as its factorization.

131136211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 19.

The square root of 131136211 is about 11451.4720014503. The cubic root of 131136211 is about 508.0512728024.

Adding to 131136211 its reverse (112631131), we get a palindrome (243767342).

The spelling of 131136211 in words is "one hundred thirty-one million, one hundred thirty-six thousand, two hundred eleven".