1123243171 has 2 divisors, whose sum is σ = 1123243172. Its totient is φ = 1123243170.

The previous prime is 1123243153. The next prime is 1123243211. The reversal of 1123243171 is 1713423211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123243171 - 2⁵ = 1123243139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123246171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561621585 + 561621586.

It is an arithmetic number, because the mean of its divisors is an integer number (561621586).

Almost surely, 2^1123243171 is an apocalyptic number.

1123243171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123243171 is an equidigital number, since it uses as much as digits as its factorization.

1123243171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 1123243171 is about 33514.8201695906. The cubic root of 1123243171 is about 1039.5002440477.

Adding to 1123243171 its reverse (1713423211), we get a palindrome (2836666382).

The spelling of 1123243171 in words is "one billion, one hundred twenty-three million, two hundred forty-three thousand, one hundred seventy-one".