30111120211 has 2 divisors, whose sum is σ = 30111120212. Its totient is φ = 30111120210.

The previous prime is 30111120209. The next prime is 30111120217. The reversal of 30111120211 is 11202111103.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (11202111103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30111120211 - 2¹ = 30111120209 is a prime.

It is a super-2 number, since 2×30111120211² (a number of 22 digits) contains 22 as substring.

Together with 30111120209, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 30111120191 and 30111120200.

It is not a weakly prime, because it can be changed into another prime (30111120217) 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 as a sum of consecutive naturals, namely, 15055560105 + 15055560106.

It is an arithmetic number, because the mean of its divisors is an integer number (15055560106).

Almost surely, 2^30111120211 is an apocalyptic number.

30111120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

30111120211 is an equidigital number, since it uses as much as digits as its factorization.

30111120211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 30111120211 its reverse (11202111103), we get a palindrome (41313231314).

The spelling of 30111120211 in words is "thirty billion, one hundred eleven million, one hundred twenty thousand, two hundred eleven".