1123912918 has 8 divisors (see below), whose sum is σ = 1686867912. Its totient is φ = 561623616.

The previous prime is 1123912903. The next prime is 1123912921. The reversal of 1123912918 is 8192193211.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162180 + ... + 168967.

It is an arithmetic number, because the mean of its divisors is an integer number (210858489).

Almost surely, 2^1123912918 is an apocalyptic number.

1123912918 is a deficient number, since it is larger than the sum of its proper divisors (562954994).

1123912918 is a wasteful number, since it uses less digits than its factorization.

1123912918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332846.

The product of its digits is 7776, while the sum is 37.

The square root of 1123912918 is about 33524.8104841772. The cubic root of 1123912918 is about 1039.7068077616.

The spelling of 1123912918 in words is "one billion, one hundred twenty-three million, nine hundred twelve thousand, nine hundred eighteen".