1123350605 has 18 divisors (see below), whose sum is σ = 1460958174. Its totient is φ = 828831744.

The previous prime is 1123350593. The next prime is 1123350607. The reversal of 1123350605 is 5060533211.

It can be written as a sum of positive squares in 9 ways, for example, as 301439044 + 821911561 = 17362^2 + 28669^2 .

It is not a de Polignac number, because 1123350605 - 2⁴ = 1123350589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123350607) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 973709 + ... + 974861.

It is an arithmetic number, because the mean of its divisors is an integer number (81164343).

Almost surely, 2^1123350605 is an apocalyptic number.

It is an amenable number.

1123350605 is a deficient number, since it is larger than the sum of its proper divisors (337607569).

1123350605 is an frugal number, since it uses more digits than its factorization.

1123350605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1123350605 is about 33516.4229147443. The cubic root of 1123350605 is about 1039.5333844255.

Adding to 1123350605 its reverse (5060533211), we get a palindrome (6183883816).

The spelling of 1123350605 in words is "one billion, one hundred twenty-three million, three hundred fifty thousand, six hundred five".