12143020 has 12 divisors (see below), whose sum is σ = 25500384. Its totient is φ = 4857200.

The previous prime is 12143017. The next prime is 12143023. The reversal of 12143020 is 2034121.

12143020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12143017) and next prime (12143023).

It is not an unprimeable number, because it can be changed into a prime (12143023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303556 + ... + 303595.

It is an arithmetic number, because the mean of its divisors is an integer number (2125032).

Almost surely, 2^12143020 is an apocalyptic number.

12143020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143020 is an abundant number, since it is smaller than the sum of its proper divisors (13357364).

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

12143020 is a wasteful number, since it uses less digits than its factorization.

12143020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607160 (or 607158 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12143020 is about 3484.6836298293. The cubic root of 12143020 is about 229.8487979120.

Adding to 12143020 its reverse (2034121), we get a palindrome (14177141).

The spelling of 12143020 in words is "twelve million, one hundred forty-three thousand, twenty".