30109211 has 16 divisors (see below), whose sum is σ = 34032096. Its totient is φ = 26400000.

The previous prime is 30109201. The next prime is 30109223. The reversal of 30109211 is 11290103.

It is a happy number.

It is not a de Polignac number, because 30109211 - 2⁶ = 30109147 is a prime.

It is a super-3 number, since 3×30109211³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30109211.

It is not an unprimeable number, because it can be changed into a prime (30109201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45221 + ... + 45881.

It is an arithmetic number, because the mean of its divisors is an integer number (2127006).

Almost surely, 2^30109211 is an apocalyptic number.

30109211 is a deficient number, since it is larger than the sum of its proper divisors (3922885).

30109211 is a wasteful number, since it uses less digits than its factorization.

30109211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 30109211 is about 5487.1860730250. The cubic root of 30109211 is about 311.0998428411.

Adding to 30109211 its reverse (11290103), we get a palindrome (41399314).

It can be divided in two parts, 301092 and 11, that added together give a palindrome (301103).

The spelling of 30109211 in words is "thirty million, one hundred nine thousand, two hundred eleven".