243203114213 has 4 divisors (see below), whose sum is σ = 243452043660. Its totient is φ = 242954184768.

The previous prime is 243203114183. The next prime is 243203114267. The reversal of 243203114213 is 312411302342.

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 227965186849 + 15237927364 = 477457^2 + 123442^2 .

It is a cyclic number.

It is not a de Polignac number, because 243203114213 - 2⁸ = 243203113957 is a prime.

It is a super-3 number, since 3×243203114213³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243203114293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124463258 + ... + 124465211.

It is an arithmetic number, because the mean of its divisors is an integer number (60863010915).

Almost surely, 2^243203114213 is an apocalyptic number.

It is an amenable number.

243203114213 is a deficient number, since it is larger than the sum of its proper divisors (248929447).

243203114213 is an equidigital number, since it uses as much as digits as its factorization.

243203114213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248929446.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 243203114213 its reverse (312411302342), we get a palindrome (555614416555).

The spelling of 243203114213 in words is "two hundred forty-three billion, two hundred three million, one hundred fourteen thousand, two hundred thirteen".