242021550331 has 8 divisors (see below), whose sum is σ = 264027901104. Its totient is φ = 220015931520.

The previous prime is 242021550293. The next prime is 242021550347. The reversal of 242021550331 is 133055120242.

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

It is a de Polignac number, because none of the positive numbers 2^k-242021550331 is a prime.

It is a super-2 number, since 2×242021550331² (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 242021550331.

It is not an unprimeable number, because it can be changed into a prime (242021550361) 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, 689095 + ... + 979231.

It is an arithmetic number, because the mean of its divisors is an integer number (33003487638).

Almost surely, 2^242021550331 is an apocalyptic number.

242021550331 is a deficient number, since it is larger than the sum of its proper divisors (22006350773).

242021550331 is a wasteful number, since it uses less digits than its factorization.

242021550331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365981.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 242021550331 its reverse (133055120242), we get a palindrome (375076670573).

The spelling of 242021550331 in words is "two hundred forty-two billion, twenty-one million, five hundred fifty thousand, three hundred thirty-one".