1123291688 has 16 divisors (see below), whose sum is σ = 2106531360. Its totient is φ = 561550000.

The previous prime is 1123291679. The next prime is 1123291703. The reversal of 1123291688 is 8861923211.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 74813 + ... + 88563.

It is an arithmetic number, because the mean of its divisors is an integer number (131658210).

Almost surely, 2^1123291688 is an apocalyptic number.

It is an amenable number.

1123291688 is a deficient number, since it is larger than the sum of its proper divisors (983239672).

1123291688 is a wasteful number, since it uses less digits than its factorization.

1123291688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23968 (or 23964 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 1123291688 is about 33515.5439758927. The cubic root of 1123291688 is about 1039.5152104440.

The spelling of 1123291688 in words is "one billion, one hundred twenty-three million, two hundred ninety-one thousand, six hundred eighty-eight".