231212042 has 8 divisors (see below), whose sum is σ = 351994656. Its totient is φ = 113880492.

The previous prime is 231211961. The next prime is 231212057. The reversal of 231212042 is 240212132.

231212042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 231212042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862598 + ... + 862865.

It is an arithmetic number, because the mean of its divisors is an integer number (43999332).

Almost surely, 2^231212042 is an apocalyptic number.

231212042 is a deficient number, since it is larger than the sum of its proper divisors (120782614).

231212042 is a wasteful number, since it uses less digits than its factorization.

231212042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725532.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 231212042 is about 15205.6582231747. The cubic root of 231212042 is about 613.7669276334.

Adding to 231212042 its reverse (240212132), we get a palindrome (471424174).

The spelling of 231212042 in words is "two hundred thirty-one million, two hundred twelve thousand, forty-two".