12123055 has 8 divisors (see below), whose sum is σ = 16625952. Its totient is φ = 8312928.

The previous prime is 12123053. The next prime is 12123101. The reversal of 12123055 is 55032121.

12123055 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12123055 - 2¹ = 12123053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123053) 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, 173152 + ... + 173221.

It is an arithmetic number, because the mean of its divisors is an integer number (2078244).

Almost surely, 2^12123055 is an apocalyptic number.

12123055 is a deficient number, since it is larger than the sum of its proper divisors (4502897).

12123055 is an equidigital number, since it uses as much as digits as its factorization.

12123055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346385.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 12123055 is about 3481.8177723712. The cubic root of 12123055 is about 229.7227598390.

Adding to 12123055 its reverse (55032121), we get a palindrome (67155176).

The spelling of 12123055 in words is "twelve million, one hundred twenty-three thousand, fifty-five".