123303220344 has 192 divisors, whose sum is σ = 356528390400. Its totient is φ = 38385446400.

The previous prime is 123303220321. The next prime is 123303220357. The reversal of 123303220344 is 443022303321.

123303220344 is a `hidden beast` number, since 1 + 2 + 330 + 322 + 0 + 3 + 4 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71645404 + ... + 71647124.

It is an arithmetic number, because the mean of its divisors is an integer number (1856918700).

Almost surely, 2^123303220344 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 123303220344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178264195200).

123303220344 is an abundant number, since it is smaller than the sum of its proper divisors (233225170056).

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

123303220344 is a wasteful number, since it uses less digits than its factorization.

123303220344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2459 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 123303220344 its reverse (443022303321), we get a palindrome (566325523665).

The spelling of 123303220344 in words is "one hundred twenty-three billion, three hundred three million, two hundred twenty thousand, three hundred forty-four".