12100923 has 24 divisors (see below), whose sum is σ = 18673200. Its totient is φ = 7524864.

The previous prime is 12100909. The next prime is 12100939. The reversal of 12100923 is 32900121.

It is a happy number.

It is not a de Polignac number, because 12100923 - 2⁹ = 12100411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12100896 and 12100905.

It is not an unprimeable number, because it can be changed into a prime (12100973) 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 23 ways as a sum of consecutive naturals, for example, 20983 + ... + 21551.

It is an arithmetic number, because the mean of its divisors is an integer number (778050).

Almost surely, 2^12100923 is an apocalyptic number.

12100923 is a deficient number, since it is larger than the sum of its proper divisors (6572277).

12100923 is a wasteful number, since it uses less digits than its factorization.

12100923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 12100923 is about 3478.6380955771. The cubic root of 12100923 is about 229.5828797730.

The spelling of 12100923 in words is "twelve million, one hundred thousand, nine hundred twenty-three".