30684091073 has 2 divisors, whose sum is σ = 30684091074. Its totient is φ = 30684091072.

The previous prime is 30684091069. The next prime is 30684091111. The reversal of 30684091073 is 37019048603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30545251984 + 138839089 = 174772^2 + 11783^2 .

It is an emirp because it is prime and its reverse (37019048603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30684091073 - 2² = 30684091069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30684091073.

It is not a weakly prime, because it can be changed into another prime (30684091003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15342045536 + 15342045537.

It is an arithmetic number, because the mean of its divisors is an integer number (15342045537).

Almost surely, 2^30684091073 is an apocalyptic number.

It is an amenable number.

30684091073 is a deficient number, since it is larger than the sum of its proper divisors (1).

30684091073 is an equidigital number, since it uses as much as digits as its factorization.

30684091073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 30684091073 in words is "thirty billion, six hundred eighty-four million, ninety-one thousand, seventy-three".