131203312211 has 2 divisors, whose sum is σ = 131203312212. Its totient is φ = 131203312210.

The previous prime is 131203312183. The next prime is 131203312213. The reversal of 131203312211 is 112213302131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131203312211 is a prime.

It is a Sophie Germain prime.

Together with 131203312213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131203312213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601656105 + 65601656106.

It is an arithmetic number, because the mean of its divisors is an integer number (65601656106).

Almost surely, 2^131203312211 is an apocalyptic number.

131203312211 is a deficient number, since it is larger than the sum of its proper divisors (1).

131203312211 is an equidigital number, since it uses as much as digits as its factorization.

131203312211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131203312211 its reverse (112213302131), we get a palindrome (243416614342).

The spelling of 131203312211 in words is "one hundred thirty-one billion, two hundred three million, three hundred twelve thousand, two hundred eleven".