243142204421301 has 4 divisors (see below), whose sum is σ = 324189605895072. Its totient is φ = 162094802947532.

The previous prime is 243142204421273. The next prime is 243142204421353. The reversal of 243142204421301 is 103124402241342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243142204421301 - 2¹⁴ = 243142204404917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243142204421381) 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, 40523700736881 + ... + 40523700736886.

It is an arithmetic number, because the mean of its divisors is an integer number (81047401473768).

Almost surely, 2^{243142204421301} is an apocalyptic number.

It is an amenable number.

243142204421301 is a deficient number, since it is larger than the sum of its proper divisors (81047401473771).

243142204421301 is an equidigital number, since it uses as much as digits as its factorization.

243142204421301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81047401473770.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 243142204421301 its reverse (103124402241342), we get a palindrome (346266606662643).

The spelling of 243142204421301 in words is "two hundred forty-three trillion, one hundred forty-two billion, two hundred four million, four hundred twenty-one thousand, three hundred one".