243132003001 has 4 divisors (see below), whose sum is σ = 247117773604. Its totient is φ = 239146232400.

The previous prime is 243132002987. The next prime is 243132003007. The reversal of 243132003001 is 100300231342.

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 3776225401 + 239355777600 = 61451^2 + 489240^2 .

It is a cyclic number.

It is not a de Polignac number, because 243132003001 - 2⁹ = 243132002489 is a prime.

It is a super-2 number, since 2×243132003001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243132003001.

It is not an unprimeable number, because it can be changed into a prime (243132003007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1992885210 + ... + 1992885331.

It is an arithmetic number, because the mean of its divisors is an integer number (61779443401).

Almost surely, 2^243132003001 is an apocalyptic number.

It is an amenable number.

243132003001 is a deficient number, since it is larger than the sum of its proper divisors (3985770603).

243132003001 is an equidigital number, since it uses as much as digits as its factorization.

243132003001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985770602.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 243132003001 its reverse (100300231342), we get a palindrome (343432234343).

The spelling of 243132003001 in words is "two hundred forty-three billion, one hundred thirty-two million, three thousand, one".