242331331 has 4 divisors (see below), whose sum is σ = 264361464. Its totient is φ = 220301200.

The previous prime is 242331283. The next prime is 242331343. The reversal of 242331331 is 133133242.

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 242331331 - 2⁹ = 242330819 is a prime.

It is a super-2 number, since 2×242331331² = 117448947968463122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242331391) 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, 11015050 + ... + 11015071.

It is an arithmetic number, because the mean of its divisors is an integer number (66090366).

Almost surely, 2^242331331 is an apocalyptic number.

242331331 is a deficient number, since it is larger than the sum of its proper divisors (22030133).

242331331 is a wasteful number, since it uses less digits than its factorization.

242331331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22030132.

The product of its digits is 1296, while the sum is 22.

The square root of 242331331 is about 15566.9949251614. The cubic root of 242331331 is about 623.4522393833.

Adding to 242331331 its reverse (133133242), we get a palindrome (375464573).

The spelling of 242331331 in words is "two hundred forty-two million, three hundred thirty-one thousand, three hundred thirty-one".