123242455224550 has 48 divisors (see below), whose sum is σ = 230515636836240. Its totient is φ = 49020718631040.

The previous prime is 123242455224491. The next prime is 123242455224571. The reversal of 123242455224550 is 55422554242321.

It is a self number, because there is not a number n which added to its sum of digits gives 123242455224550.

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 23 ways as a sum of consecutive naturals, for example, 819503164 + ... + 819653536.

It is an arithmetic number, because the mean of its divisors is an integer number (4802409100755).

Almost surely, 2^{123242455224550} is an apocalyptic number.

123242455224550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123242455224550 is a deficient number, since it is larger than the sum of its proper divisors (107273181611690).

123242455224550 is a wasteful number, since it uses less digits than its factorization.

123242455224550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242137 (or 242132 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 46.

The spelling of 123242455224550 in words is "one hundred twenty-three trillion, two hundred forty-two billion, four hundred fifty-five million, two hundred twenty-four thousand, five hundred fifty".