243333104413 has 4 divisors (see below), whose sum is σ = 278094976480. Its totient is φ = 208571232348.

The previous prime is 243333104407. The next prime is 243333104437. The reversal of 243333104413 is 314401333342.

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, and also an emirpimes, since its reverse is a distinct semiprime: 314401333342 = 2 ⋅157200666671.

It is a cyclic number.

It is not a de Polignac number, because 243333104413 - 2²⁹ = 242796233501 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 (243333104453) 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, 17380936023 + ... + 17380936036.

It is an arithmetic number, because the mean of its divisors is an integer number (69523744120).

Almost surely, 2^243333104413 is an apocalyptic number.

It is an amenable number.

243333104413 is a deficient number, since it is larger than the sum of its proper divisors (34761872067).

243333104413 is an equidigital number, since it uses as much as digits as its factorization.

243333104413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34761872066.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 243333104413 its reverse (314401333342), we get a palindrome (557734437755).

The spelling of 243333104413 in words is "two hundred forty-three billion, three hundred thirty-three million, one hundred four thousand, four hundred thirteen".