12290123 has 2 divisors, whose sum is σ = 12290124. Its totient is φ = 12290122.

The previous prime is 12290071. The next prime is 12290129. The reversal of 12290123 is 32109221.

12290123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12290123 - 2¹⁶ = 12224587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12290095 and 12290104.

It is not a weakly prime, because it can be changed into another prime (12290129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145061 + 6145062.

It is an arithmetic number, because the mean of its divisors is an integer number (6145062).

Almost surely, 2^12290123 is an apocalyptic number.

12290123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290123 is an equidigital number, since it uses as much as digits as its factorization.

12290123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12290123 is about 3505.7271713583. The cubic root of 12290123 is about 230.7732199624.

Adding to 12290123 its reverse (32109221), we get a palindrome (44399344).

The spelling of 12290123 in words is "twelve million, two hundred ninety thousand, one hundred twenty-three".