243055413021 has 8 divisors (see below), whose sum is σ = 341130404320. Its totient is φ = 153508681872.

The previous prime is 243055413011. The next prime is 243055413043. The reversal of 243055413021 is 120314550342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243055413021 - 2¹⁴ = 243055396637 is a prime.

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 243055413021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243055413011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2132064970 + ... + 2132065083.

It is an arithmetic number, because the mean of its divisors is an integer number (42641300540).

Almost surely, 2^243055413021 is an apocalyptic number.

It is an amenable number.

243055413021 is a deficient number, since it is larger than the sum of its proper divisors (98074991299).

243055413021 is a wasteful number, since it uses less digits than its factorization.

243055413021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264130075.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 243055413021 its reverse (120314550342), we get a palindrome (363369963363).

The spelling of 243055413021 in words is "two hundred forty-three billion, fifty-five million, four hundred thirteen thousand, twenty-one".