123424443 has 12 divisors (see below), whose sum is σ = 179267088. Its totient is φ = 81827280.

The previous prime is 123424429. The next prime is 123424447. The reversal of 123424443 is 344424321.

It is a happy number.

It is not a de Polignac number, because 123424443 - 2¹² = 123420347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123424447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36255 + ... + 39512.

It is an arithmetic number, because the mean of its divisors is an integer number (14938924).

Almost surely, 2^123424443 is an apocalyptic number.

123424443 is a deficient number, since it is larger than the sum of its proper divisors (55842645).

123424443 is a wasteful number, since it uses less digits than its factorization.

123424443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75954 (or 75951 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 123424443 is about 11109.6553951957. The cubic root of 123424443 is about 497.8903687641.

Adding to 123424443 its reverse (344424321), we get a palindrome (467848764).

The spelling of 123424443 in words is "one hundred twenty-three million, four hundred twenty-four thousand, four hundred forty-three".