12109830 has 16 divisors (see below), whose sum is σ = 29063664. Its totient is φ = 3229280.

The previous prime is 12109817. The next prime is 12109843. The reversal of 12109830 is 3890121.

It is an interprime number because it is at equal distance from previous prime (12109817) and next prime (12109843).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12109830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201801 + ... + 201860.

It is an arithmetic number, because the mean of its divisors is an integer number (1816479).

Almost surely, 2^12109830 is an apocalyptic number.

12109830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12109830 is an abundant number, since it is smaller than the sum of its proper divisors (16953834).

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

12109830 is a wasteful number, since it uses less digits than its factorization.

12109830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403671.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 12109830 is about 3479.9181024846. The cubic root of 12109830 is about 229.6391948489.

Adding to 12109830 its reverse (3890121), we get a palindrome (15999951).

The spelling of 12109830 in words is "twelve million, one hundred nine thousand, eight hundred thirty".