231242 has 16 divisors (see below), whose sum is σ = 395712. Its totient is φ = 100320.

The previous prime is 231241. The next prime is 231269. The reversal of 231242 is 242132.

231242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278 + ... + 734.

It is an arithmetic number, because the mean of its divisors is an integer number (24732).

2²³¹²⁴² is an apocalyptic number.

231242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231242 is a deficient number, since it is larger than the sum of its proper divisors (164470).

231242 is a wasteful number, since it uses less digits than its factorization.

231242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its digits is 96, while the sum is 14.

The square root of 231242 is about 480.8762834659. The cubic root of 231242 is about 61.3793434954.

Adding to 231242 its reverse (242132), we get a palindrome (473374).

The spelling of 231242 in words is "two hundred thirty-one thousand, two hundred forty-two".