12105023 has 8 divisors (see below), whose sum is σ = 14061600. Its totient is φ = 10205280.

The previous prime is 12105019. The next prime is 12105029. The reversal of 12105023 is 32050121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12105023 - 2² = 12105019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12104989 and 12105007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13748 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^12105023 is an apocalyptic number.

12105023 is a deficient number, since it is larger than the sum of its proper divisors (1956577).

12105023 is an equidigital number, since it uses as much as digits as its factorization.

12105023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28417.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12105023 is about 3479.2273567561. The cubic root of 12105023 is about 229.6088057159.

Adding to 12105023 its reverse (32050121), we get a palindrome (44155144).

The spelling of 12105023 in words is "twelve million, one hundred five thousand, twenty-three".