11928123 has 12 divisors (see below), whose sum is σ = 17512768. Its totient is φ = 7821360.

The previous prime is 11928113. The next prime is 11928139. The reversal of 11928123 is 32182911.

It is not a de Polignac number, because 11928123 - 2⁴ = 11928107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11928113) 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 in 11 ways as a sum of consecutive naturals, for example, 10315 + ... + 11412.

Almost surely, 2^11928123 is an apocalyptic number.

11928123 is a deficient number, since it is larger than the sum of its proper divisors (5584645).

11928123 is a wasteful number, since it uses less digits than its factorization.

11928123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21794 (or 21791 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11928123 is about 3453.7114818699. The cubic root of 11928123 is about 228.4848293407.

The spelling of 11928123 in words is "eleven million, nine hundred twenty-eight thousand, one hundred twenty-three".