231566134337011 has 2 divisors, whose sum is σ = 231566134337012. Its totient is φ = 231566134337010.

The previous prime is 231566134336981. The next prime is 231566134337051. The reversal of 231566134337011 is 110733431665132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231566134337011 - 2⁷ = 231566134336883 is a prime.

It is not a weakly prime, because it can be changed into another prime (231566134337051) 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, 115783067168505 + 115783067168506.

It is an arithmetic number, because the mean of its divisors is an integer number (115783067168506).

Almost surely, 2^{231566134337011} is an apocalyptic number.

231566134337011 is a deficient number, since it is larger than the sum of its proper divisors (1).

231566134337011 is an equidigital number, since it uses as much as digits as its factorization.

231566134337011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 231566134337011 in words is "two hundred thirty-one trillion, five hundred sixty-six billion, one hundred thirty-four million, three hundred thirty-seven thousand, eleven".