12323820 has 24 divisors (see below), whose sum is σ = 34506864. Its totient is φ = 3286336.

The previous prime is 12323813. The next prime is 12323851. The reversal of 12323820 is 2832321.

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 7 ways as a sum of consecutive naturals, for example, 102639 + ... + 102758.

It is an arithmetic number, because the mean of its divisors is an integer number (1437786).

Almost surely, 2^12323820 is an apocalyptic number.

12323820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12323820 is an abundant number, since it is smaller than the sum of its proper divisors (22183044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12323820 is a wasteful number, since it uses less digits than its factorization.

12323820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205409 (or 205407 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12323820 is about 3510.5298745346. The cubic root of 12323820 is about 230.9839384646.

The spelling of 12323820 in words is "twelve million, three hundred twenty-three thousand, eight hundred twenty".