243203232401 has 8 divisors (see below), whose sum is σ = 244302579144. Its totient is φ = 242104360960.

The previous prime is 243203232367. The next prime is 243203232463. The reversal of 243203232401 is 104232302342.

It can be written as a sum of positive squares in 4 ways, for example, as 16912742401 + 226290490000 = 130049^2 + 475700^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243203232401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243203232101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927605 + ... + 1160541.

It is an arithmetic number, because the mean of its divisors is an integer number (30537822393).

Almost surely, 2^243203232401 is an apocalyptic number.

It is an amenable number.

243203232401 is a deficient number, since it is larger than the sum of its proper divisors (1099346743).

243203232401 is a wasteful number, since it uses less digits than its factorization.

243203232401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237651.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 243203232401 its reverse (104232302342), we get a palindrome (347435534743).

The spelling of 243203232401 in words is "two hundred forty-three billion, two hundred three million, two hundred thirty-two thousand, four hundred one".