30203219 has 2 divisors, whose sum is σ = 30203220. Its totient is φ = 30203218.

The previous prime is 30203213. The next prime is 30203233. The reversal of 30203219 is 91230203.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30203219 is a prime.

It is a super-2 number, since 2×30203219² = 1824468875923922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30203219.

It is not a weakly prime, because it can be changed into another prime (30203213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101609 + 15101610.

It is an arithmetic number, because the mean of its divisors is an integer number (15101610).

Almost surely, 2^30203219 is an apocalyptic number.

30203219 is a deficient number, since it is larger than the sum of its proper divisors (1).

30203219 is an equidigital number, since it uses as much as digits as its factorization.

30203219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 30203219 is about 5495.7455363217. The cubic root of 30203219 is about 311.4232819511.

The spelling of 30203219 in words is "thirty million, two hundred three thousand, two hundred nineteen".