242031 has 4 divisors (see below), whose sum is σ = 322712. Its totient is φ = 161352.

The previous prime is 242009. The next prime is 242057. The reversal of 242031 is 130242.

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

It is not a de Polignac number, because 242031 - 2⁷ = 241903 is a prime.

It is a super-2 number, since 2×242031² = 117158009922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 241998 and 242016.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 242031.

It is not an unprimeable number, because it can be changed into a prime (242731) 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, 40336 + ... + 40341.

It is an arithmetic number, because the mean of its divisors is an integer number (80678).

2²⁴²⁰³¹ is an apocalyptic number.

242031 is a deficient number, since it is larger than the sum of its proper divisors (80681).

242031 is an equidigital number, since it uses as much as digits as its factorization.

242031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80680.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 242031 is about 491.9664622716. The cubic root of 242031 is about 62.3194576401.

Adding to 242031 its reverse (130242), we get a palindrome (372273).

The spelling of 242031 in words is "two hundred forty-two thousand, thirty-one".