243011413213 has 4 divisors (see below), whose sum is σ = 245741878620. Its totient is φ = 240280947808.

The previous prime is 243011413193. The next prime is 243011413219. The reversal of 243011413213 is 312314110342.

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 12877256484 + 230134156729 = 113478^2 + 479723^2 .

It is a cyclic number.

It is not a de Polignac number, because 243011413213 - 2²⁹ = 242474542301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243011413219) 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, 1365232570 + ... + 1365232747.

It is an arithmetic number, because the mean of its divisors is an integer number (61435469655).

Almost surely, 2^243011413213 is an apocalyptic number.

It is an amenable number.

243011413213 is a deficient number, since it is larger than the sum of its proper divisors (2730465407).

243011413213 is an equidigital number, since it uses as much as digits as its factorization.

243011413213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730465406.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 243011413213 its reverse (312314110342), we get a palindrome (555325523555).

The spelling of 243011413213 in words is "two hundred forty-three billion, eleven million, four hundred thirteen thousand, two hundred thirteen".