243303401153 has 4 divisors (see below), whose sum is σ = 243331244628. Its totient is φ = 243275557680.

The previous prime is 243303401087. The next prime is 243303401207. The reversal of 243303401153 is 351104303342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25917136144 + 217386265009 = 160988^2 + 466247^2 .

It is a cyclic number.

It is not a de Polignac number, because 243303401153 - 2¹⁰ = 243303400129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243303403153) 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, 13908626 + ... + 13926107.

It is an arithmetic number, because the mean of its divisors is an integer number (60832811157).

Almost surely, 2^243303401153 is an apocalyptic number.

It is an amenable number.

243303401153 is a deficient number, since it is larger than the sum of its proper divisors (27843475).

243303401153 is an equidigital number, since it uses as much as digits as its factorization.

243303401153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27843474.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 243303401153 its reverse (351104303342), we get a palindrome (594407704495).

The spelling of 243303401153 in words is "two hundred forty-three billion, three hundred three million, four hundred one thousand, one hundred fifty-three".