243201440353 has 8 divisors (see below), whose sum is σ = 245944524456. Its totient is φ = 240464928000.

The previous prime is 243201440347. The next prime is 243201440401. The reversal of 243201440353 is 353044102342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 225859711009 + 17341729344 = 475247^2 + 131688^2 .

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 243201440353 - 2³⁷ = 105762486881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243201440453) 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, 1568488 + ... + 1716553.

It is an arithmetic number, because the mean of its divisors is an integer number (30743065557).

Almost surely, 2^243201440353 is an apocalyptic number.

It is an amenable number.

243201440353 is a deficient number, since it is larger than the sum of its proper divisors (2743084103).

243201440353 is a wasteful number, since it uses less digits than its factorization.

243201440353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285875.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 243201440353 its reverse (353044102342), we get a palindrome (596245542695).

The spelling of 243201440353 in words is "two hundred forty-three billion, two hundred one million, four hundred forty thousand, three hundred fifty-three".