12143120 has 40 divisors (see below), whose sum is σ = 30801600. Its totient is φ = 4415360.

The previous prime is 12143119. The next prime is 12143137. The reversal of 12143120 is 2134121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12143095 and 12143104.

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, 6020 + ... + 7779.

It is an arithmetic number, because the mean of its divisors is an integer number (770040).

Almost surely, 2^12143120 is an apocalyptic number.

12143120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143120 is an abundant number, since it is smaller than the sum of its proper divisors (18658480).

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

12143120 is a wasteful number, since it uses less digits than its factorization.

12143120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13823 (or 13817 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12143120 is about 3484.6979783046. The cubic root of 12143120 is about 229.8494288592.

Adding to 12143120 its reverse (2134121), we get a palindrome (14277241).

It can be divided in two parts, 1214 and 3120, that added together give a palindrome (4334).

The spelling of 12143120 in words is "twelve million, one hundred forty-three thousand, one hundred twenty".