242080321 has 4 divisors (see below), whose sum is σ = 276663232. Its totient is φ = 207497412.

The previous prime is 242080303. The next prime is 242080339. The reversal of 242080321 is 123080242.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123080242 = 2 ⋅61540121.

It is an interprime number because it is at equal distance from previous prime (242080303) and next prime (242080339).

It is a cyclic number.

It is not a de Polignac number, because 242080321 - 2²⁷ = 107862593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242080292 and 242080301.

It is not an unprimeable number, because it can be changed into a prime (242080021) 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, 17291445 + ... + 17291458.

It is an arithmetic number, because the mean of its divisors is an integer number (69165808).

Almost surely, 2^242080321 is an apocalyptic number.

It is an amenable number.

242080321 is a deficient number, since it is larger than the sum of its proper divisors (34582911).

242080321 is an equidigital number, since it uses as much as digits as its factorization.

242080321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34582910.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 242080321 is about 15558.9305866438. The cubic root of 242080321 is about 623.2369049903.

The spelling of 242080321 in words is "two hundred forty-two million, eighty thousand, three hundred twenty-one".