242115505123 has 8 divisors (see below), whose sum is σ = 242687799200. Its totient is φ = 241543306368.

The previous prime is 242115505117. The next prime is 242115505133. The reversal of 242115505123 is 321505511242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242115505123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242115505133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9280165 + ... + 9306217.

It is an arithmetic number, because the mean of its divisors is an integer number (30335974900).

Almost surely, 2^242115505123 is an apocalyptic number.

242115505123 is a deficient number, since it is larger than the sum of its proper divisors (572294077).

242115505123 is a wasteful number, since it uses less digits than its factorization.

242115505123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47661.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 242115505123 in words is "two hundred forty-two billion, one hundred fifteen million, five hundred five thousand, one hundred twenty-three".