12123384 has 144 divisors (see below), whose sum is σ = 38803320. Its totient is φ = 3144960.

The previous prime is 12123373. The next prime is 12123439. The reversal of 12123384 is 48332121.

It is a super-2 number, since 2×12123384² = 293952879222912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 198714 + ... + 198774.

Almost surely, 2^12123384 is an apocalyptic number.

12123384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12123384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19401660).

12123384 is an abundant number, since it is smaller than the sum of its proper divisors (26679936).

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

12123384 is a wasteful number, since it uses less digits than its factorization.

12123384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 86 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 12123384 is about 3481.8650174870. The cubic root of 12123384 is about 229.7248379210.

The spelling of 12123384 in words is "twelve million, one hundred twenty-three thousand, three hundred eighty-four".