1224523123 has 2 divisors, whose sum is σ = 1224523124. Its totient is φ = 1224523122.

The previous prime is 1224523109. The next prime is 1224523159. The reversal of 1224523123 is 3213254221.

It is a weak prime.

It is an emirp because it is prime and its reverse (3213254221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224523123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1224523163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612261561 + 612261562.

It is an arithmetic number, because the mean of its divisors is an integer number (612261562).

Almost surely, 2^1224523123 is an apocalyptic number.

1224523123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224523123 is an equidigital number, since it uses as much as digits as its factorization.

1224523123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 1224523123 is about 34993.1868082917. The cubic root of 1224523123 is about 1069.8486183486.

Adding to 1224523123 its reverse (3213254221), we get a palindrome (4437777344).

The spelling of 1224523123 in words is "one billion, two hundred twenty-four million, five hundred twenty-three thousand, one hundred twenty-three".