1123513255 has 8 divisors (see below), whose sum is σ = 1427522832. Its totient is φ = 845939328.

The previous prime is 1123513243. The next prime is 1123513271. The reversal of 1123513255 is 5523153211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123513255 - 2¹⁵ = 1123480487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6608817 + ... + 6608986.

It is an arithmetic number, because the mean of its divisors is an integer number (178440354).

Almost surely, 2^1123513255 is an apocalyptic number.

1123513255 is a deficient number, since it is larger than the sum of its proper divisors (304009577).

1123513255 is a wasteful number, since it uses less digits than its factorization.

1123513255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13217825.

The product of its digits is 4500, while the sum is 28.

The square root of 1123513255 is about 33518.8492493403. The cubic root of 1123513255 is about 1039.5835533708.

Adding to 1123513255 its reverse (5523153211), we get a palindrome (6646666466).

The spelling of 1123513255 in words is "one billion, one hundred twenty-three million, five hundred thirteen thousand, two hundred fifty-five".