12124403 has 4 divisors (see below), whose sum is σ = 12138960. Its totient is φ = 12109848.

The previous prime is 12124369. The next prime is 12124423. The reversal of 12124403 is 30442121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30442121 = 17 ⋅1790713.

It is a cyclic number.

It is not a de Polignac number, because 12124403 - 2⁶ = 12124339 is a prime.

It is a super-2 number, since 2×12124403² = 294002296212818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12124423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5948 + ... + 7721.

It is an arithmetic number, because the mean of its divisors is an integer number (3034740).

Almost surely, 2^12124403 is an apocalyptic number.

12124403 is a deficient number, since it is larger than the sum of its proper divisors (14557).

12124403 is an equidigital number, since it uses as much as digits as its factorization.

12124403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14556.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12124403 is about 3482.0113440367. The cubic root of 12124403 is about 229.7312740517.

Adding to 12124403 its reverse (30442121), we get a palindrome (42566524).

The spelling of 12124403 in words is "twelve million, one hundred twenty-four thousand, four hundred three".