243311530001 has 8 divisors (see below), whose sum is σ = 250172533800. Its totient is φ = 236494648960.

The previous prime is 243311529977. The next prime is 243311530009. The reversal of 243311530001 is 100035113342.

It can be written as a sum of positive squares in 4 ways, for example, as 15606005776 + 227705524225 = 124924^2 + 477185^2 .

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-243311530001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243311530009) 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, 11019506 + ... + 11041563.

It is an arithmetic number, because the mean of its divisors is an integer number (31271566725).

Almost surely, 2^243311530001 is an apocalyptic number.

It is an amenable number.

243311530001 is a deficient number, since it is larger than the sum of its proper divisors (6861003799).

243311530001 is a wasteful number, since it uses less digits than its factorization.

243311530001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22061379.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 243311530001 its reverse (100035113342), we get a palindrome (343346643343).

The spelling of 243311530001 in words is "two hundred forty-three billion, three hundred eleven million, five hundred thirty thousand, one".