131213322011 has 2 divisors, whose sum is σ = 131213322012. Its totient is φ = 131213322010.

The previous prime is 131213321983. The next prime is 131213322013. The reversal of 131213322011 is 110223312131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131213322011 - 2²⁶ = 131146213147 is a prime.

Together with 131213322013, 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 (131213322013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606661005 + 65606661006.

It is an arithmetic number, because the mean of its divisors is an integer number (65606661006).

Almost surely, 2^131213322011 is an apocalyptic number.

131213322011 is a deficient number, since it is larger than the sum of its proper divisors (1).

131213322011 is an equidigital number, since it uses as much as digits as its factorization.

131213322011 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 131213322011 its reverse (110223312131), we get a palindrome (241436634142).

The spelling of 131213322011 in words is "one hundred thirty-one billion, two hundred thirteen million, three hundred twenty-two thousand, eleven".