30122243 has 2 divisors, whose sum is σ = 30122244. Its totient is φ = 30122242.

The previous prime is 30122221. The next prime is 30122269. The reversal of 30122243 is 34222103.

It is a weak prime.

It is an emirp because it is prime and its reverse (34222103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30122243 - 2¹² = 30118147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30122293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061121 + 15061122.

It is an arithmetic number, because the mean of its divisors is an integer number (15061122).

Almost surely, 2^30122243 is an apocalyptic number.

30122243 is a deficient number, since it is larger than the sum of its proper divisors (1).

30122243 is an equidigital number, since it uses as much as digits as its factorization.

30122243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30122243 is about 5488.3734384606. The cubic root of 30122243 is about 311.1447202306.

Adding to 30122243 its reverse (34222103), we get a palindrome (64344346).

The spelling of 30122243 in words is "thirty million, one hundred twenty-two thousand, two hundred forty-three".