242112401 has 4 divisors (see below), whose sum is σ = 242751600. Its totient is φ = 241473204.

The previous prime is 242112391. The next prime is 242112407. The reversal of 242112401 is 104211242.

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 242112401 - 2¹⁰ = 242111377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242112401.

It is not an unprimeable number, because it can be changed into a prime (242112407) 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, 319031 + ... + 319788.

It is an arithmetic number, because the mean of its divisors is an integer number (60687900).

Almost surely, 2^242112401 is an apocalyptic number.

It is an amenable number.

242112401 is a deficient number, since it is larger than the sum of its proper divisors (639199).

242112401 is an equidigital number, since it uses as much as digits as its factorization.

242112401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639198.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 242112401 is about 15559.9614716747. The cubic root of 242112401 is about 623.2644338104.

Adding to 242112401 its reverse (104211242), we get a palindrome (346323643).

The spelling of 242112401 in words is "two hundred forty-two million, one hundred twelve thousand, four hundred one".