1233424123 has 4 divisors (see below), whose sum is σ = 1234231288. Its totient is φ = 1232616960.

The previous prime is 1233424117. The next prime is 1233424139. The reversal of 1233424123 is 3214243321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233424123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233424183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401286 + ... + 404347.

It is an arithmetic number, because the mean of its divisors is an integer number (308557822).

Almost surely, 2^1233424123 is an apocalyptic number.

1233424123 is a deficient number, since it is larger than the sum of its proper divisors (807165).

1233424123 is an equidigital number, since it uses as much as digits as its factorization.

1233424123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807164.

The product of its digits is 3456, while the sum is 25.

The square root of 1233424123 is about 35120.1384251258. The cubic root of 1233424123 is about 1072.4345888098.

Adding to 1233424123 its reverse (3214243321), we get a palindrome (4447667444).

The spelling of 1233424123 in words is "one billion, two hundred thirty-three million, four hundred twenty-four thousand, one hundred twenty-three".