242012203989 has 4 divisors (see below), whose sum is σ = 322682938656. Its totient is φ = 161341469324.

The previous prime is 242012203981. The next prime is 242012204011. The reversal of 242012203989 is 989302210242.

242012203989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 242012203989 - 2³ = 242012203981 is a prime.

It is a super-2 number, since 2×242012203989² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242012203989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242012203981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40335367329 + ... + 40335367334.

It is an arithmetic number, because the mean of its divisors is an integer number (80670734664).

Almost surely, 2^242012203989 is an apocalyptic number.

It is an amenable number.

242012203989 is a deficient number, since it is larger than the sum of its proper divisors (80670734667).

242012203989 is an equidigital number, since it uses as much as digits as its factorization.

242012203989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80670734666.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 242012203989 in words is "two hundred forty-two billion, twelve million, two hundred three thousand, nine hundred eighty-nine".