243242314021 has 8 divisors (see below), whose sum is σ = 294343640640. Its totient is φ = 196229093568.

The previous prime is 243242313973. The next prime is 243242314027. The reversal of 243242314021 is 120413242342.

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 243242314021 - 2¹⁹ = 243241789733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243242314027) 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, 1022026411 + ... + 1022026648.

It is an arithmetic number, because the mean of its divisors is an integer number (36792955080).

Almost surely, 2^243242314021 is an apocalyptic number.

It is an amenable number.

243242314021 is a deficient number, since it is larger than the sum of its proper divisors (51101326619).

243242314021 is a wasteful number, since it uses less digits than its factorization.

243242314021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044053083.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 243242314021 its reverse (120413242342), we get a palindrome (363655556363).

The spelling of 243242314021 in words is "two hundred forty-three billion, two hundred forty-two million, three hundred fourteen thousand, twenty-one".