1123313017 has 4 divisors (see below), whose sum is σ = 1123816960. Its totient is φ = 1122809076.

The previous prime is 1123312997. The next prime is 1123313027. The reversal of 1123313017 is 7103133211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7103133211 = 1753 ⋅4051987.

It is a cyclic number.

It is not a de Polignac number, because 1123313017 - 2²³ = 1114924409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123313027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248613 + ... + 253090.

It is an arithmetic number, because the mean of its divisors is an integer number (280954240).

Almost surely, 2^1123313017 is an apocalyptic number.

It is an amenable number.

1123313017 is a deficient number, since it is larger than the sum of its proper divisors (503943).

1123313017 is an equidigital number, since it uses as much as digits as its factorization.

1123313017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503942.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1123313017 is about 33515.8621700233. The cubic root of 1123313017 is about 1039.5217898213.

Adding to 1123313017 its reverse (7103133211), we get a palindrome (8226446228).

The spelling of 1123313017 in words is "one billion, one hundred twenty-three million, three hundred thirteen thousand, seventeen".