12120023 has 8 divisors (see below), whose sum is σ = 12448656. Its totient is φ = 11793600.

The previous prime is 12120019. The next prime is 12120047. The reversal of 12120023 is 32002121.

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 12120023 - 2² = 12120019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12119986 and 12120013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120083) 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 7 ways as a sum of consecutive naturals, for example, 22133 + ... + 22673.

It is an arithmetic number, because the mean of its divisors is an integer number (1556082).

Almost surely, 2^12120023 is an apocalyptic number.

12120023 is a deficient number, since it is larger than the sum of its proper divisors (328633).

12120023 is an equidigital number, since it uses as much as digits as its factorization.

12120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12120023 is about 3481.3823403930. The cubic root of 12120023 is about 229.7036068702.

Adding to 12120023 its reverse (32002121), we get a palindrome (44122144).

The spelling of 12120023 in words is "twelve million, one hundred twenty thousand, twenty-three".