242320331 has 4 divisors (see below), whose sum is σ = 264349464. Its totient is φ = 220291200.

The previous prime is 242320327. The next prime is 242320343. The reversal of 242320331 is 133023242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242320331 - 2² = 242320327 is a prime.

It is a super-2 number, since 2×242320331² = 117438285631899122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242320321) 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, 11014550 + ... + 11014571.

It is an arithmetic number, because the mean of its divisors is an integer number (66087366).

Almost surely, 2^242320331 is an apocalyptic number.

242320331 is a deficient number, since it is larger than the sum of its proper divisors (22029133).

242320331 is a wasteful number, since it uses less digits than its factorization.

242320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22029132.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 242320331 is about 15566.6416095444. The cubic root of 242320331 is about 623.4428059100.

Adding to 242320331 its reverse (133023242), we get a palindrome (375343573).

The spelling of 242320331 in words is "two hundred forty-two million, three hundred twenty thousand, three hundred thirty-one".