12103143 has 16 divisors (see below), whose sum is σ = 17592960. Its totient is φ = 7356384.

The previous prime is 12103141. The next prime is 12103153. The reversal of 12103143 is 34130121.

It is not a de Polignac number, because 12103143 - 2¹ = 12103141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1368 + ... + 5106.

It is an arithmetic number, because the mean of its divisors is an integer number (1099560).

Almost surely, 2^12103143 is an apocalyptic number.

12103143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12103143 is a deficient number, since it is larger than the sum of its proper divisors (5489817).

12103143 is a wasteful number, since it uses less digits than its factorization.

12103143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12103143 is about 3478.9571713374. The cubic root of 12103143 is about 229.5969184494.

Adding to 12103143 its reverse (34130121), we get a palindrome (46233264).

It can be divided in two parts, 12103 and 143, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 12103143 in words is "twelve million, one hundred three thousand, one hundred forty-three".