230681212081 has 2 divisors, whose sum is σ = 230681212082. Its totient is φ = 230681212080.

The previous prime is 230681212033. The next prime is 230681212133. The reversal of 230681212081 is 180212186032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230539221025 + 141991056 = 480145^2 + 11916^2 .

It is a cyclic number.

It is not a de Polignac number, because 230681212081 - 2⁹ = 230681211569 is a prime.

It is a super-2 number, since 2×230681212081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230681212001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115340606040 + 115340606041.

It is an arithmetic number, because the mean of its divisors is an integer number (115340606041).

Almost surely, 2^230681212081 is an apocalyptic number.

It is an amenable number.

230681212081 is a deficient number, since it is larger than the sum of its proper divisors (1).

230681212081 is an equidigital number, since it uses as much as digits as its factorization.

230681212081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 230681212081 in words is "two hundred thirty billion, six hundred eighty-one million, two hundred twelve thousand, eighty-one".