243201020141 has 4 divisors (see below), whose sum is σ = 243301893984. Its totient is φ = 243100146300.

The previous prime is 243201020063. The next prime is 243201020149. The reversal of 243201020141 is 141020102342.

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 243201020141 - 2¹⁴ = 243201003757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243201020149) 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, 50433305 + ... + 50438126.

It is an arithmetic number, because the mean of its divisors is an integer number (60825473496).

Almost surely, 2^243201020141 is an apocalyptic number.

It is an amenable number.

243201020141 is a deficient number, since it is larger than the sum of its proper divisors (100873843).

243201020141 is a wasteful number, since it uses less digits than its factorization.

243201020141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100873842.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 243201020141 its reverse (141020102342), we get a palindrome (384221122483).

The spelling of 243201020141 in words is "two hundred forty-three billion, two hundred one million, twenty thousand, one hundred forty-one".