12331642 has 8 divisors (see below), whose sum is σ = 18720576. Its totient is φ = 6091452.

The previous prime is 12331639. The next prime is 12331651. The reversal of 12331642 is 24613321.

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

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, 36978 + ... + 37309.

It is an arithmetic number, because the mean of its divisors is an integer number (2340072).

Almost surely, 2^12331642 is an apocalyptic number.

12331642 is a deficient number, since it is larger than the sum of its proper divisors (6388934).

12331642 is an equidigital number, since it uses as much as digits as its factorization.

12331642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74372.

The product of its digits is 864, while the sum is 22.

The square root of 12331642 is about 3511.6437746446. The cubic root of 12331642 is about 231.0327970774.

Adding to 12331642 its reverse (24613321), we get a palindrome (36944963).

The spelling of 12331642 in words is "twelve million, three hundred thirty-one thousand, six hundred forty-two".