243454442001 has 4 divisors (see below), whose sum is σ = 324605922672. Its totient is φ = 162302961332.

The previous prime is 243454441981. The next prime is 243454442009. The reversal of 243454442001 is 100244454342.

243454442001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 243454442001 - 2⁵ = 243454441969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243454442009) 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 3 ways as a sum of consecutive naturals, for example, 40575740331 + ... + 40575740336.

It is an arithmetic number, because the mean of its divisors is an integer number (81151480668).

Almost surely, 2^243454442001 is an apocalyptic number.

It is an amenable number.

243454442001 is a deficient number, since it is larger than the sum of its proper divisors (81151480671).

243454442001 is an equidigital number, since it uses as much as digits as its factorization.

243454442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81151480670.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 243454442001 its reverse (100244454342), we get a palindrome (343698896343).

The spelling of 243454442001 in words is "two hundred forty-three billion, four hundred fifty-four million, four hundred forty-two thousand, one".