123550434504144 has 100 divisors (see below), whose sum is σ = 357593145550080. Its totient is φ = 41183208302400.

The previous prime is 123550434504031. The next prime is 123550434504193. The reversal of 123550434504144 is 441405434055321.

123550434504144 is a `hidden beast` number, since 1 + 2 + 3 + 5 + 50 + 4 + 3 + 450 + 4 + 144 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 123550434504144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 343455927 + ... + 343815465.

Almost surely, 2^{123550434504144} is an apocalyptic number.

It is an amenable number.

123550434504144 is an abundant number, since it is smaller than the sum of its proper divisors (234042711045936).

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

123550434504144 is a wasteful number, since it uses less digits than its factorization.

123550434504144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624710 (or 624695 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 45.

Adding to 123550434504144 its reverse (441405434055321), we get a palindrome (564955868559465).

The spelling of 123550434504144 in words is "one hundred twenty-three trillion, five hundred fifty billion, four hundred thirty-four million, five hundred four thousand, one hundred forty-four".