12343120 has 40 divisors (see below), whose sum is σ = 28853064. Its totient is φ = 4910592.

The previous prime is 12343099. The next prime is 12343129. The reversal of 12343120 is 2134321.

12343120 = 310² + 311² + ... + 405².

It is a happy number.

12343120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 121104 + 12222016 = 348^2 + 3496^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×12343120² = 304705222668800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12343094 and 12343103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12343129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21882 + ... + 22438.

Almost surely, 2^12343120 is an apocalyptic number.

12343120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12343120 is an abundant number, since it is smaller than the sum of its proper divisors (16509944).

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

12343120 is a wasteful number, since it uses less digits than its factorization.

12343120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12343120 is about 3513.2776719183. The cubic root of 12343120 is about 231.1044547995.

Adding to 12343120 its reverse (2134321), we get a palindrome (14477441).

The spelling of 12343120 in words is "twelve million, three hundred forty-three thousand, one hundred twenty".