131011431202111 has 2 divisors, whose sum is σ = 131011431202112. Its totient is φ = 131011431202110.

The previous prime is 131011431202103. The next prime is 131011431202133. The reversal of 131011431202111 is 111202134110131.

It is an a-pointer prime, because the next prime (131011431202133) can be obtained adding 131011431202111 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131011431202111 - 2³ = 131011431202103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131011431202711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65505715601055 + 65505715601056.

It is an arithmetic number, because the mean of its divisors is an integer number (65505715601056).

Almost surely, 2^{131011431202111} is an apocalyptic number.

131011431202111 is a deficient number, since it is larger than the sum of its proper divisors (1).

131011431202111 is an equidigital number, since it uses as much as digits as its factorization.

131011431202111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 131011431202111 its reverse (111202134110131), we get a palindrome (242213565312242).

The spelling of 131011431202111 in words is "one hundred thirty-one trillion, eleven billion, four hundred thirty-one million, two hundred two thousand, one hundred eleven".