1123345258 has 16 divisors (see below), whose sum is σ = 1926466560.
Its totient is φ = 481250736.
The previous prime is 1123345241. The next prime is 1123345259. The reversal of 1123345258 is 8525433211.
Adding to 1123345258 its reverse (8525433211), we get a palindrome (9648778469).
It is not an unprimeable number, because it can be changed into a prime (1123345259) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26935 + ... + 54517.
It is an arithmetic number, because the mean of its divisors is an integer number (120404160).
Almost surely, 21123345258 is an apocalyptic number.
1123345258 is a deficient number, since it is larger than the sum of its proper divisors (803121302).
1123345258 is a wasteful number, since it uses less digits than its factorization.
1123345258 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30501.
The product of its digits is 28800, while the sum is 34.
The square root of 1123345258 is about 33516.3431477839.
The cubic root of 1123345258 is about 1039.5317350758.
The spelling of 1123345258 in words is "one billion, one hundred twenty-three million, three hundred forty-five thousand, two hundred fifty-eight".