123550513104242 has 16 divisors (see below), whose sum is σ = 224259754878720. Its totient is φ = 49835501083968.

The previous prime is 123550513104229. The next prime is 123550513104269. The reversal of 123550513104242 is 242401315055321.

It is a junction number, because it is equal to n+sod(n) for n = 123550513104196 and 123550513104205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259559901242 + ... + 259559901717.

It is an arithmetic number, because the mean of its divisors is an integer number (14016234679920).

Almost surely, 2^{123550513104242} is an apocalyptic number.

123550513104242 is a deficient number, since it is larger than the sum of its proper divisors (100709241774478).

123550513104242 is a wasteful number, since it uses less digits than its factorization.

123550513104242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519119802985.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 123550513104242 its reverse (242401315055321), we get a palindrome (365951828159563).

The spelling of 123550513104242 in words is "one hundred twenty-three trillion, five hundred fifty billion, five hundred thirteen million, one hundred four thousand, two hundred forty-two".