242521103 has 16 divisors (see below), whose sum is σ = 268797312. Its totient is φ = 216972000.

The previous prime is 242521087. The next prime is 242521121. The reversal of 242521103 is 301125242.

242521103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 242521103 - 2⁴ = 242521087 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 (242521183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448013 + ... + 448553.

It is an arithmetic number, because the mean of its divisors is an integer number (16799832).

Almost surely, 2^242521103 is an apocalyptic number.

242521103 is a deficient number, since it is larger than the sum of its proper divisors (26276209).

242521103 is a wasteful number, since it uses less digits than its factorization.

242521103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 242521103 is about 15573.0890641517. The cubic root of 242521103 is about 623.6149407381.

Adding to 242521103 its reverse (301125242), we get a palindrome (543646345).

The spelling of 242521103 in words is "two hundred forty-two million, five hundred twenty-one thousand, one hundred three".