123443001424 has 80 divisors (see below), whose sum is σ = 249961144320. Its totient is φ = 58988160000.

The previous prime is 123443001413. The next prime is 123443001431. The reversal of 123443001424 is 424100344321.

It is a junction number, because it is equal to n+sod(n) for n = 123443001392 and 123443001401.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 64934874 + ... + 64936774.

It is an arithmetic number, because the mean of its divisors is an integer number (3124514304).

Almost surely, 2^123443001424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123443001424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124980572160).

123443001424 is an abundant number, since it is smaller than the sum of its proper divisors (126518142896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123443001424 is a wasteful number, since it uses less digits than its factorization.

123443001424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500 (or 3494 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 123443001424 its reverse (424100344321), we get a palindrome (547543345745).

The spelling of 123443001424 in words is "one hundred twenty-three billion, four hundred forty-three million, one thousand, four hundred twenty-four".