242533103521 has 4 divisors (see below), whose sum is σ = 242555732272. Its totient is φ = 242510474772.

The previous prime is 242533103467. The next prime is 242533103551. The reversal of 242533103521 is 125301335242.

242533103521 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 a de Polignac number, because none of the positive numbers 2^k-242533103521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242533103551) 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, 11298291 + ... + 11319736.

It is an arithmetic number, because the mean of its divisors is an integer number (60638933068).

Almost surely, 2^242533103521 is an apocalyptic number.

It is an amenable number.

242533103521 is a deficient number, since it is larger than the sum of its proper divisors (22628751).

242533103521 is a wasteful number, since it uses less digits than its factorization.

242533103521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22628750.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 242533103521 its reverse (125301335242), we get a palindrome (367834438763).

The spelling of 242533103521 in words is "two hundred forty-two billion, five hundred thirty-three million, one hundred three thousand, five hundred twenty-one".