1123353668 has 6 divisors (see below), whose sum is σ = 1965868926. Its totient is φ = 561676832.

The previous prime is 1123353667. The next prime is 1123353677. The reversal of 1123353668 is 8663533211.

It can be written as a sum of positive squares in only one way, i.e., 878055424 + 245298244 = 29632^2 + 15662^2 .

It is not an unprimeable number, because it can be changed into a prime (1123353667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140419205 + ... + 140419212.

It is an arithmetic number, because the mean of its divisors is an integer number (327644821).

Almost surely, 2^1123353668 is an apocalyptic number.

It is an amenable number.

1123353668 is a deficient number, since it is larger than the sum of its proper divisors (842515258).

1123353668 is a wasteful number, since it uses less digits than its factorization.

1123353668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280838421 (or 280838419 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 1123353668 is about 33516.4686087302. The cubic root of 1123353668 is about 1039.5343292441.

Adding to 1123353668 its reverse (8663533211), we get a palindrome (9786886879).

The spelling of 1123353668 in words is "one billion, one hundred twenty-three million, three hundred fifty-three thousand, six hundred sixty-eight".