12250123 has 4 divisors (see below), whose sum is σ = 12258088. Its totient is φ = 12242160.

The previous prime is 12250097. The next prime is 12250163. The reversal of 12250123 is 32105221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32105221 = 113 ⋅284117.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12250123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12250097 and 12250106.

It is not an unprimeable number, because it can be changed into a prime (12250163) 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 3 ways as a sum of consecutive naturals, for example, 858 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (3064522).

Almost surely, 2^12250123 is an apocalyptic number.

12250123 is a deficient number, since it is larger than the sum of its proper divisors (7965).

12250123 is an equidigital number, since it uses as much as digits as its factorization.

12250123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7964.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12250123 is about 3500.0175713845. The cubic root of 12250123 is about 230.5225861427.

Adding to 12250123 its reverse (32105221), we get a palindrome (44355344).

The spelling of 12250123 in words is "twelve million, two hundred fifty thousand, one hundred twenty-three".