30320317 has 2 divisors, whose sum is σ = 30320318. Its totient is φ = 30320316.

The previous prime is 30320291. The next prime is 30320359. The reversal of 30320317 is 71302303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22146436 + 8173881 = 4706^2 + 2859^2 .

It is a cyclic number.

It is not a de Polignac number, because 30320317 - 2¹¹ = 30318269 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30320294 and 30320303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30320377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160158 + 15160159.

It is an arithmetic number, because the mean of its divisors is an integer number (15160159).

Almost surely, 2^30320317 is an apocalyptic number.

It is an amenable number.

30320317 is a deficient number, since it is larger than the sum of its proper divisors (1).

30320317 is an equidigital number, since it uses as much as digits as its factorization.

30320317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 30320317 is about 5506.3887439955. The cubic root of 30320317 is about 311.8252260518.

The spelling of 30320317 in words is "thirty million, three hundred twenty thousand, three hundred seventeen".