123043243344 has 80 divisors (see below), whose sum is σ = 382390049280. Its totient is φ = 33304936320.

The previous prime is 123043243333. The next prime is 123043243361. The reversal of 123043243344 is 443342340321.

It is a happy number.

It is a super-2 number, since 2×123043243344² (a number of 23 digits) contains 22 as substring.

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, 9630462 + ... + 9643229.

It is an arithmetic number, because the mean of its divisors is an integer number (4779875616).

Almost surely, 2^123043243344 is an apocalyptic number.

123043243344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123043243344 is an abundant number, since it is smaller than the sum of its proper divisors (259346805936).

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

123043243344 is a wasteful number, since it uses less digits than its factorization.

123043243344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19273728 (or 19273722 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 123043243344 its reverse (443342340321), we get a palindrome (566385583665).

The spelling of 123043243344 in words is "one hundred twenty-three billion, forty-three million, two hundred forty-three thousand, three hundred forty-four".