242123245556 has 12 divisors (see below), whose sum is σ = 437383927680. Its totient is φ = 117156409080.

The previous prime is 242123245543. The next prime is 242123245577. The reversal of 242123245556 is 655542321242.

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 3 ways as a sum of consecutive naturals, for example, 976303286 + ... + 976303533.

It is an arithmetic number, because the mean of its divisors is an integer number (36448660640).

Almost surely, 2^242123245556 is an apocalyptic number.

It is an amenable number.

242123245556 is a deficient number, since it is larger than the sum of its proper divisors (195260682124).

242123245556 is a wasteful number, since it uses less digits than its factorization.

242123245556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952606854 (or 1952606852 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

Adding to 242123245556 its reverse (655542321242), we get a palindrome (897665566798).

The spelling of 242123245556 in words is "two hundred forty-two billion, one hundred twenty-three million, two hundred forty-five thousand, five hundred fifty-six".