30202019 has 2 divisors, whose sum is σ = 30202020. Its totient is φ = 30202018.

The previous prime is 30202009. The next prime is 30202049. The reversal of 30202019 is 91020203.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30202019 is a prime.

It is a super-2 number, since 2×30202019² = 1824323903352722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30201988 and 30202006.

It is not a weakly prime, because it can be changed into another prime (30202009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101009 + 15101010.

It is an arithmetic number, because the mean of its divisors is an integer number (15101010).

Almost surely, 2^30202019 is an apocalyptic number.

30202019 is a deficient number, since it is larger than the sum of its proper divisors (1).

30202019 is an equidigital number, since it uses as much as digits as its factorization.

30202019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 30202019 is about 5495.6363598768. The cubic root of 30202019 is about 311.4191575244.

The spelling of 30202019 in words is "thirty million, two hundred two thousand, nineteen".