12143030 has 24 divisors (see below), whose sum is σ = 22489488. Its totient is φ = 4720608.

The previous prime is 12143023. The next prime is 12143063. The reversal of 12143030 is 3034121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12142996 and 12143014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13247 + ... + 14133.

It is an arithmetic number, because the mean of its divisors is an integer number (937062).

Almost surely, 2^12143030 is an apocalyptic number.

12143030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12143030 is a deficient number, since it is larger than the sum of its proper divisors (10346458).

12143030 is an equidigital number, since it uses as much as digits as its factorization.

12143030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12143030 is about 3484.6850646794. The cubic root of 12143030 is about 229.8488610068.

Adding to 12143030 its reverse (3034121), we get a palindrome (15177151).

The spelling of 12143030 in words is "twelve million, one hundred forty-three thousand, thirty".