243054214021 has 8 divisors (see below), whose sum is σ = 243643106304. Its totient is φ = 242465438160.

The previous prime is 243054213973. The next prime is 243054214037. The reversal of 243054214021 is 120412450342.

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

It is a cyclic number.

It is not a de Polignac number, because 243054214021 - 2³¹ = 240906730373 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 (243054214421) 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, 5337676 + ... + 5383018.

It is an arithmetic number, because the mean of its divisors is an integer number (30455388288).

Almost surely, 2^243054214021 is an apocalyptic number.

It is an amenable number.

243054214021 is a deficient number, since it is larger than the sum of its proper divisors (588892283).

243054214021 is a wasteful number, since it uses less digits than its factorization.

243054214021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58211.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 243054214021 its reverse (120412450342), we get a palindrome (363466664363).

The spelling of 243054214021 in words is "two hundred forty-three billion, fifty-four million, two hundred fourteen thousand, twenty-one".