231566134337051 has 2 divisors, whose sum is σ = 231566134337052. Its totient is φ = 231566134337050.

The previous prime is 231566134337011. The next prime is 231566134337113. The reversal of 231566134337051 is 150733431665132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231566134337051 - 2²⁶ = 231566067228187 is a prime.

It is not a weakly prime, because it can be changed into another prime (231566134337011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115783067168525 + 115783067168526.

It is an arithmetic number, because the mean of its divisors is an integer number (115783067168526).

Almost surely, 2^{231566134337051} is an apocalyptic number.

231566134337051 is a deficient number, since it is larger than the sum of its proper divisors (1).

231566134337051 is an equidigital number, since it uses as much as digits as its factorization.

231566134337051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 50.

The spelling of 231566134337051 in words is "two hundred thirty-one trillion, five hundred sixty-six billion, one hundred thirty-four million, three hundred thirty-seven thousand, fifty-one".