243443413401 has 4 divisors (see below), whose sum is σ = 324591217872. Its totient is φ = 162295608932.

The previous prime is 243443413349. The next prime is 243443413429. The reversal of 243443413401 is 104314344342.

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 243443413401 - 2⁶ = 243443413337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243443418401) 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, 40573902231 + ... + 40573902236.

It is an arithmetic number, because the mean of its divisors is an integer number (81147804468).

Almost surely, 2^243443413401 is an apocalyptic number.

It is an amenable number.

243443413401 is a deficient number, since it is larger than the sum of its proper divisors (81147804471).

243443413401 is an equidigital number, since it uses as much as digits as its factorization.

243443413401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81147804470.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 243443413401 its reverse (104314344342), we get a palindrome (347757757743).

The spelling of 243443413401 in words is "two hundred forty-three billion, four hundred forty-three million, four hundred thirteen thousand, four hundred one".