242161410243 has 4 divisors (see below), whose sum is σ = 322881880328. Its totient is φ = 161440940160.

The previous prime is 242161410187. The next prime is 242161410247. The reversal of 242161410243 is 342014161242.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 242161410243 - 2¹⁰ = 242161409219 is a prime.

It is a super-2 number, since 2×242161410243² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 242161410243.

It is not an unprimeable number, because it can be changed into a prime (242161410247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40360235038 + ... + 40360235043.

It is an arithmetic number, because the mean of its divisors is an integer number (80720470082).

Almost surely, 2^242161410243 is an apocalyptic number.

242161410243 is a deficient number, since it is larger than the sum of its proper divisors (80720470085).

242161410243 is an equidigital number, since it uses as much as digits as its factorization.

242161410243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80720470084.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 242161410243 its reverse (342014161242), we get a palindrome (584175571485).

The spelling of 242161410243 in words is "two hundred forty-two billion, one hundred sixty-one million, four hundred ten thousand, two hundred forty-three".