243203114413 has 4 divisors (see below), whose sum is σ = 277946416480. Its totient is φ = 208459812348.

The previous prime is 243203114369. The next prime is 243203114417. The reversal of 243203114413 is 314411302342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243203114413 - 2²¹ = 243201017261 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 (243203114417) 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, 17371651023 + ... + 17371651036.

It is an arithmetic number, because the mean of its divisors is an integer number (69486604120).

Almost surely, 2^243203114413 is an apocalyptic number.

It is an amenable number.

243203114413 is a deficient number, since it is larger than the sum of its proper divisors (34743302067).

243203114413 is an equidigital number, since it uses as much as digits as its factorization.

243203114413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34743302066.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 243203114413 its reverse (314411302342), we get a palindrome (557614416755).

The spelling of 243203114413 in words is "two hundred forty-three billion, two hundred three million, one hundred fourteen thousand, four hundred thirteen".