1123211 has 2 divisors, whose sum is σ = 1123212.
Its totient is φ = 1123210.
The previous prime is 1123189. The next prime is 1123217.
1123211 is nontrivially palindromic in base 10.
It is a strong prime.
It is a palprime.
It is a cyclic number.
It is not a de Polignac number, because 1123211 - 214 = 1106827 is a prime.
It is a plaindrome in base 16.
It is a junction number, because it is equal to n+sod(n) for n = 1123192 and 1123201.
It is not a weakly prime, because it can be changed into another prime (1123217) by changing a digit.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561605 + 561606.
It is an arithmetic number, because the mean of its divisors is an integer number (561606).
21123211 is an apocalyptic number.
1123211 is a deficient number, since it is larger than the sum of its proper divisors (1).
1123211 is an equidigital number, since it uses as much as digits as its factorization.
1123211 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 12, while the sum is 11.
The square root of 1123211 is about 1059.8164935497.
The cubic root of 1123211 is about 103.9490319785.
Multiplying 1123211 by its sum of digits (11), we get a palindrome (12355321).
The spelling of 1123211 in words is "one million, one hundred twenty-three thousand, two hundred eleven".