1123105573 has 2 divisors, whose sum is σ = 1123105574. Its totient is φ = 1123105572.

The previous prime is 1123105559. The next prime is 1123105597. The reversal of 1123105573 is 3755013211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 777405924 + 345699649 = 27882^2 + 18593^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123105573 - 2²⁹ = 586234661 is a prime.

It is a super-2 number, since 2×1123105573² = 2522732256207316658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123105513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561552786 + 561552787.

It is an arithmetic number, because the mean of its divisors is an integer number (561552787).

Almost surely, 2^1123105573 is an apocalyptic number.

It is an amenable number.

1123105573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123105573 is an equidigital number, since it uses as much as digits as its factorization.

1123105573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 1123105573 is about 33512.7673133688. The cubic root of 1123105573 is about 1039.4577958349.

Adding to 1123105573 its reverse (3755013211), we get a palindrome (4878118784).

The spelling of 1123105573 in words is "one billion, one hundred twenty-three million, one hundred five thousand, five hundred seventy-three".