30120402317 has 2 divisors, whose sum is σ = 30120402318. Its totient is φ = 30120402316.

The previous prime is 30120402259. The next prime is 30120402359. The reversal of 30120402317 is 71320402103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19762455241 + 10357947076 = 140579^2 + 101774^2 .

It is an emirp because it is prime and its reverse (71320402103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30120402317 - 2¹² = 30120398221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30120402292 and 30120402301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30120402017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060201158 + 15060201159.

It is an arithmetic number, because the mean of its divisors is an integer number (15060201159).

Almost surely, 2^30120402317 is an apocalyptic number.

It is an amenable number.

30120402317 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120402317 is an equidigital number, since it uses as much as digits as its factorization.

30120402317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The spelling of 30120402317 in words is "thirty billion, one hundred twenty million, four hundred two thousand, three hundred seventeen".