30385211 has 2 divisors, whose sum is σ = 30385212. Its totient is φ = 30385210.

The previous prime is 30385207. The next prime is 30385213. The reversal of 30385211 is 11258303.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30385211 - 2² = 30385207 is a prime.

It is a super-2 number, since 2×30385211² = 1846522095029042, which contains 22 as substring.

Together with 30385213, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1880330 and since 30385211 and 1880330 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30385213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15192605 + 15192606.

It is an arithmetic number, because the mean of its divisors is an integer number (15192606).

Almost surely, 2^30385211 is an apocalyptic number.

30385211 is a deficient number, since it is larger than the sum of its proper divisors (1).

30385211 is an equidigital number, since it uses as much as digits as its factorization.

30385211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 30385211 is about 5512.2782041548. The cubic root of 30385211 is about 312.0475320691.

The spelling of 30385211 in words is "thirty million, three hundred eighty-five thousand, two hundred eleven".