306335534081 has 2 divisors, whose sum is σ = 306335534082. Its totient is φ = 306335534080.

The previous prime is 306335534059. The next prime is 306335534137. The reversal of 306335534081 is 180435533603.

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., 165290220481 + 141045313600 = 406559^2 + 375560^2 .

It is a cyclic number.

It is not a de Polignac number, because 306335534081 - 2¹⁸ = 306335271937 is a prime.

It is a super-2 number, since 2×306335534081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (306335504081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153167767040 + 153167767041.

It is an arithmetic number, because the mean of its divisors is an integer number (153167767041).

Almost surely, 2^306335534081 is an apocalyptic number.

It is an amenable number.

306335534081 is a deficient number, since it is larger than the sum of its proper divisors (1).

306335534081 is an equidigital number, since it uses as much as digits as its factorization.

306335534081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 306335534081 in words is "three hundred six billion, three hundred thirty-five million, five hundred thirty-four thousand, eighty-one".