242123045140 has 24 divisors (see below), whose sum is σ = 508612658400. Its totient is φ = 96819834528.

The previous prime is 242123045123. The next prime is 242123045147. The reversal of 242123045140 is 41540321242.

242123045140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 242123045099 and 242123045108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242123045147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1768842 + ... + 1900801.

It is an arithmetic number, because the mean of its divisors is an integer number (21192194100).

Almost surely, 2^242123045140 is an apocalyptic number.

242123045140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242123045140 is an abundant number, since it is smaller than the sum of its proper divisors (266489613260).

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

242123045140 is a wasteful number, since it uses less digits than its factorization.

242123045140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672951 (or 3672949 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 242123045140 its reverse (41540321242), we get a palindrome (283663366382).

The spelling of 242123045140 in words is "two hundred forty-two billion, one hundred twenty-three million, forty-five thousand, one hundred forty".