1123409992 has 32 divisors (see below), whose sum is σ = 2178328320. Its totient is φ = 542589120.

The previous prime is 1123409983. The next prime is 1123409993. The reversal of 1123409992 is 2999043211.

It is not an unprimeable number, because it can be changed into a prime (1123409993) 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, 141718 + ... + 149434.

It is an arithmetic number, because the mean of its divisors is an integer number (68072760).

Almost surely, 2^1123409992 is an apocalyptic number.

It is an amenable number.

1123409992 is a deficient number, since it is larger than the sum of its proper divisors (1054918328).

1123409992 is a wasteful number, since it uses less digits than its factorization.

1123409992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341 (or 8337 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1123409992 is about 33517.3088418507. The cubic root of 1123409992 is about 1039.5517027436.

The spelling of 1123409992 in words is "one billion, one hundred twenty-three million, four hundred nine thousand, nine hundred ninety-two".