242011321 has 4 divisors (see below), whose sum is σ = 242310544. Its totient is φ = 241712100.

The previous prime is 242011307. The next prime is 242011331. The reversal of 242011321 is 123110242.

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 242011321 - 2⁷ = 242011193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242011295 and 242011304.

It is not an unprimeable number, because it can be changed into a prime (242011331) 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, 148395 + ... + 150016.

It is an arithmetic number, because the mean of its divisors is an integer number (60577636).

Almost surely, 2^242011321 is an apocalyptic number.

It is an amenable number.

242011321 is a deficient number, since it is larger than the sum of its proper divisors (299223).

242011321 is an equidigital number, since it uses as much as digits as its factorization.

242011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299222.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 242011321 is about 15556.7130525699. The cubic root of 242011321 is about 623.1776857573.

Adding to 242011321 its reverse (123110242), we get a palindrome (365121563).

The spelling of 242011321 in words is "two hundred forty-two million, eleven thousand, three hundred twenty-one".