1123299853 has 8 divisors (see below), whose sum is σ = 1218539448. Its totient is φ = 1029321984.

The previous prime is 1123299797. The next prime is 1123299857. The reversal of 1123299853 is 3589923211.

It can be written as a sum of positive squares in 4 ways, for example, as 915849 + 1122384004 = 957^2 + 33502^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123299853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123299857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313576 + ... + 317137.

It is an arithmetic number, because the mean of its divisors is an integer number (152317431).

Almost surely, 2^1123299853 is an apocalyptic number.

1123299853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1123299853 is a deficient number, since it is larger than the sum of its proper divisors (95239595).

1123299853 is a wasteful number, since it uses less digits than its factorization.

1123299853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630863.

The product of its digits is 116640, while the sum is 43.

The square root of 1123299853 is about 33515.6657848237. The cubic root of 1123299853 is about 1039.5177291193.

The spelling of 1123299853 in words is "one billion, one hundred twenty-three million, two hundred ninety-nine thousand, eight hundred fifty-three".