1123565041 has 2 divisors, whose sum is σ = 1123565042. Its totient is φ = 1123565040.

The previous prime is 1123564999. The next prime is 1123565099. The reversal of 1123565041 is 1405653211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 930494016 + 193071025 = 30504^2 + 13895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123565041 - 2¹⁵ = 1123532273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123565141) 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, 561782520 + 561782521.

It is an arithmetic number, because the mean of its divisors is an integer number (561782521).

Almost surely, 2^1123565041 is an apocalyptic number.

It is an amenable number.

1123565041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123565041 is an equidigital number, since it uses as much as digits as its factorization.

1123565041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1123565041 is about 33519.6217311592. The cubic root of 1123565041 is about 1039.5995256039.

The spelling of 1123565041 in words is "one billion, one hundred twenty-three million, five hundred sixty-five thousand, forty-one".