1123221041 has 2 divisors, whose sum is σ = 1123221042. Its totient is φ = 1123221040.

The previous prime is 1123221037. The next prime is 1123221079. The reversal of 1123221041 is 1401223211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1119237025 + 3984016 = 33455^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123221041 - 2² = 1123221037 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123221091) 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, 561610520 + 561610521.

It is an arithmetic number, because the mean of its divisors is an integer number (561610521).

Almost surely, 2^1123221041 is an apocalyptic number.

It is an amenable number.

1123221041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123221041 is an equidigital number, since it uses as much as digits as its factorization.

1123221041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1123221041 is about 33514.4900155142. The cubic root of 1123221041 is about 1039.4934173005.

Adding to 1123221041 its reverse (1401223211), we get a palindrome (2524444252).

The spelling of 1123221041 in words is "one billion, one hundred twenty-three million, two hundred twenty-one thousand, forty-one".