242120545143 has 8 divisors (see below), whose sum is σ = 322829676288. Its totient is φ = 161412555384.

The previous prime is 242120545123. The next prime is 242120545151. The reversal of 242120545143 is 341545021242.

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

It is not a de Polignac number, because 242120545143 - 2¹⁰ = 242120544119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242120545123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619780 + ... + 931862.

It is an arithmetic number, because the mean of its divisors is an integer number (40353709536).

Almost surely, 2^242120545143 is an apocalyptic number.

242120545143 is a deficient number, since it is larger than the sum of its proper divisors (80709131145).

242120545143 is a wasteful number, since it uses less digits than its factorization.

242120545143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570693.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 242120545143 its reverse (341545021242), we get a palindrome (583665566385).

The spelling of 242120545143 in words is "two hundred forty-two billion, one hundred twenty million, five hundred forty-five thousand, one hundred forty-three".