1004123312 has 20 divisors (see below), whose sum is σ = 1946154456. Its totient is φ = 501889920.

The previous prime is 1004123299. The next prime is 1004123317. The reversal of 1004123312 is 2133214001.

It is not an unprimeable number, because it can be changed into a prime (1004123317) by changing a digit.

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, 46868 + ... + 64844.

Almost surely, 2^1004123312 is an apocalyptic number.

It is an amenable number.

1004123312 is a deficient number, since it is larger than the sum of its proper divisors (942031144).

1004123312 is a wasteful number, since it uses less digits than its factorization.

1004123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21476 (or 21470 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1004123312 is about 31687.9048218717. The cubic root of 1004123312 is about 1001.3725525709.

Adding to 1004123312 its reverse (2133214001), we get a palindrome (3137337313).

The spelling of 1004123312 in words is "one billion, four million, one hundred twenty-three thousand, three hundred twelve".