30133211 has 4 divisors (see below), whose sum is σ = 30144192. Its totient is φ = 30122232.

The previous prime is 30133199. The next prime is 30133217. The reversal of 30133211 is 11233103.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30133211 - 2²² = 25938907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30133217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2621 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (7536048).

Almost surely, 2^30133211 is an apocalyptic number.

30133211 is a deficient number, since it is larger than the sum of its proper divisors (10981).

30133211 is an equidigital number, since it uses as much as digits as its factorization.

30133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10980.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 30133211 is about 5489.3725506655. The cubic root of 30133211 is about 311.1824799372.

Adding to 30133211 its reverse (11233103), we get a palindrome (41366314).

The spelling of 30133211 in words is "thirty million, one hundred thirty-three thousand, two hundred eleven".