242104505563 has 4 divisors (see below), whose sum is σ = 242233905888. Its totient is φ = 241975105240.

The previous prime is 242104505549. The next prime is 242104505609. The reversal of 242104505563 is 365505401242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365505401242 = 2 ⋅182752700621.

It is a cyclic number.

It is not a de Polignac number, because 242104505563 - 2²⁵ = 242070951131 is a prime.

It is a super-2 number, since 2×242104505563² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242104505063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64697356 + ... + 64701097.

It is an arithmetic number, because the mean of its divisors is an integer number (60558476472).

Almost surely, 2^242104505563 is an apocalyptic number.

242104505563 is a deficient number, since it is larger than the sum of its proper divisors (129400325).

242104505563 is a wasteful number, since it uses less digits than its factorization.

242104505563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129400324.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 242104505563 in words is "two hundred forty-two billion, one hundred four million, five hundred five thousand, five hundred sixty-three".