231212006 has 8 divisors (see below), whose sum is σ = 347692800. Its totient is φ = 115314408.

The previous prime is 231211961. The next prime is 231212057. The reversal of 231212006 is 600212132.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144806 + ... + 146393.

It is an arithmetic number, because the mean of its divisors is an integer number (43461600).

Almost surely, 2^231212006 is an apocalyptic number.

231212006 is a deficient number, since it is larger than the sum of its proper divisors (116480794).

231212006 is a wasteful number, since it uses less digits than its factorization.

231212006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291598.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 231212006 is about 15205.6570394048. The cubic root of 231212006 is about 613.7668957786.

Adding to 231212006 its reverse (600212132), we get a palindrome (831424138).

The spelling of 231212006 in words is "two hundred thirty-one million, two hundred twelve thousand, six".