123143322224550 has 48 divisors (see below), whose sum is σ = 315246904906752. Its totient is φ = 31778921863200.

The previous prime is 123143322224513. The next prime is 123143322224591. The reversal of 123143322224550 is 55422223341321.

It is a junction number, because it is equal to n+sod(n) for n = 123143322224499 and 123143322224508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13241212794 + ... + 13241222093.

It is an arithmetic number, because the mean of its divisors is an integer number (6567643852224).

Almost surely, 2^{123143322224550} is an apocalyptic number.

123143322224550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123143322224550 is an abundant number, since it is smaller than the sum of its proper divisors (192103582682202).

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

123143322224550 is a wasteful number, since it uses less digits than its factorization.

123143322224550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26482434933 (or 26482434928 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 123143322224550 its reverse (55422223341321), we get a palindrome (178565545565871).

The spelling of 123143322224550 in words is "one hundred twenty-three trillion, one hundred forty-three billion, three hundred twenty-two million, two hundred twenty-four thousand, five hundred fifty".