243044020001 has 8 divisors (see below), whose sum is σ = 246566416104. Its totient is φ = 239526840960.

The previous prime is 243044019983. The next prime is 243044020039. The reversal of 243044020001 is 100020440342.

243044020001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 54969147025 + 188074872976 = 234455^2 + 433676^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 243044020001 - 2¹⁰ = 243044018977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243044020301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1210370 + ... + 1396811.

It is an arithmetic number, because the mean of its divisors is an integer number (30820802013).

Almost surely, 2^243044020001 is an apocalyptic number.

It is an amenable number.

243044020001 is a deficient number, since it is larger than the sum of its proper divisors (3522396103).

243044020001 is a wasteful number, since it uses less digits than its factorization.

243044020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608531.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 243044020001 its reverse (100020440342), we get a palindrome (343064460343).

The spelling of 243044020001 in words is "two hundred forty-three billion, forty-four million, twenty thousand, one".