30213212317 has 2 divisors, whose sum is σ = 30213212318. Its totient is φ = 30213212316.

The previous prime is 30213212299. The next prime is 30213212327. The reversal of 30213212317 is 71321231203.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15518681476 + 14694530841 = 124574^2 + 121221^2 .

It is an emirp because it is prime and its reverse (71321231203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30213212317 - 2⁷ = 30213212189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30213212291 and 30213212300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30213212327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106606158 + 15106606159.

It is an arithmetic number, because the mean of its divisors is an integer number (15106606159).

Almost surely, 2^30213212317 is an apocalyptic number.

It is an amenable number.

30213212317 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213212317 is an equidigital number, since it uses as much as digits as its factorization.

30213212317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The spelling of 30213212317 in words is "thirty billion, two hundred thirteen million, two hundred twelve thousand, three hundred seventeen".