1224403123 has 2 divisors, whose sum is σ = 1224403124. Its totient is φ = 1224403122.

The previous prime is 1224403109. The next prime is 1224403129. The reversal of 1224403123 is 3213044221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224403123 is a prime.

It is a super-2 number, since 2×1224403123² = 2998326015224306258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1224403094 and 1224403103.

It is not a weakly prime, because it can be changed into another prime (1224403129) 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 as a sum of consecutive naturals, namely, 612201561 + 612201562.

It is an arithmetic number, because the mean of its divisors is an integer number (612201562).

Almost surely, 2^1224403123 is an apocalyptic number.

1224403123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224403123 is an equidigital number, since it uses as much as digits as its factorization.

1224403123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1224403123 is about 34991.4721467960. The cubic root of 1224403123 is about 1069.8136697699.

Adding to 1224403123 its reverse (3213044221), we get a palindrome (4437447344).

The spelling of 1224403123 in words is "one billion, two hundred twenty-four million, four hundred three thousand, one hundred twenty-three".