131212332011 has 2 divisors, whose sum is σ = 131212332012. Its totient is φ = 131212332010.

The previous prime is 131212331963. The next prime is 131212332049. The reversal of 131212332011 is 110233212131.

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-131212332011 is a prime.

It is not a weakly prime, because it can be changed into another prime (131212332061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606166005 + 65606166006.

It is an arithmetic number, because the mean of its divisors is an integer number (65606166006).

Almost surely, 2^131212332011 is an apocalyptic number.

131212332011 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212332011 is an equidigital number, since it uses as much as digits as its factorization.

131212332011 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 131212332011 its reverse (110233212131), we get a palindrome (241445544142).

The spelling of 131212332011 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred thirty-two thousand, eleven".