1123330211 has 2 divisors, whose sum is σ = 1123330212. Its totient is φ = 1123330210.

The previous prime is 1123330207. The next prime is 1123330213. The reversal of 1123330211 is 1120333211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123330211 - 2² = 1123330207 is a prime.

Together with 1123330213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123330211.

It is not a weakly prime, because it can be changed into another prime (1123330213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561665105 + 561665106.

It is an arithmetic number, because the mean of its divisors is an integer number (561665106).

Almost surely, 2^1123330211 is an apocalyptic number.

1123330211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123330211 is an equidigital number, since it uses as much as digits as its factorization.

1123330211 is an evil number, because the sum of its binary digits is even.

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

The square root of 1123330211 is about 33516.1186744527. The cubic root of 1123330211 is about 1039.5270936106.

Adding to 1123330211 its reverse (1120333211), we get a palindrome (2243663422).

The spelling of 1123330211 in words is "one billion, one hundred twenty-three million, three hundred thirty thousand, two hundred eleven".