231871606711 has 2 divisors, whose sum is σ = 231871606712. Its totient is φ = 231871606710.

The previous prime is 231871606693. The next prime is 231871606739. The reversal of 231871606711 is 117606178132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231871606711 - 2¹¹ = 231871604663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231871606111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115935803355 + 115935803356.

It is an arithmetic number, because the mean of its divisors is an integer number (115935803356).

Almost surely, 2^231871606711 is an apocalyptic number.

231871606711 is a deficient number, since it is larger than the sum of its proper divisors (1).

231871606711 is an equidigital number, since it uses as much as digits as its factorization.

231871606711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 231871606711 in words is "two hundred thirty-one billion, eight hundred seventy-one million, six hundred six thousand, seven hundred eleven".