12331988 has 12 divisors (see below), whose sum is σ = 22716960. Its totient is φ = 5841432.

The previous prime is 12331967. The next prime is 12331993. The reversal of 12331988 is 88913321.

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, 81056 + ... + 81207.

It is an arithmetic number, because the mean of its divisors is an integer number (1893080).

Almost surely, 2^12331988 is an apocalyptic number.

It is an amenable number.

12331988 is a deficient number, since it is larger than the sum of its proper divisors (10384972).

12331988 is a wasteful number, since it uses less digits than its factorization.

12331988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162286 (or 162284 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 12331988 is about 3511.6930389771. The cubic root of 12331988 is about 231.0349578224.

The spelling of 12331988 in words is "twelve million, three hundred thirty-one thousand, nine hundred eighty-eight".