243003660401 has 8 divisors (see below), whose sum is σ = 243567920064. Its totient is φ = 242440055280.

The previous prime is 243003660377. The next prime is 243003660481. The reversal of 243003660401 is 104066300342.

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-243003660401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243003660481) 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, 583691 + ... + 909231.

It is an arithmetic number, because the mean of its divisors is an integer number (30445990008).

Almost surely, 2^243003660401 is an apocalyptic number.

It is an amenable number.

243003660401 is a deficient number, since it is larger than the sum of its proper divisors (564259663).

243003660401 is an equidigital number, since it uses as much as digits as its factorization.

243003660401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327271.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 243003660401 its reverse (104066300342), we get a palindrome (347069960743).

The spelling of 243003660401 in words is "two hundred forty-three billion, three million, six hundred sixty thousand, four hundred one".