12103543 has 8 divisors (see below), whose sum is σ = 12744288. Its totient is φ = 11472384.

The previous prime is 12103529. The next prime is 12103561. The reversal of 12103543 is 34530121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12103543 - 2¹³ = 12095351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12103543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103573) 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, 271 + ... + 4927.

It is an arithmetic number, because the mean of its divisors is an integer number (1593036).

Almost surely, 2^12103543 is an apocalyptic number.

12103543 is a deficient number, since it is larger than the sum of its proper divisors (640745).

12103543 is a wasteful number, since it uses less digits than its factorization.

12103543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12103543 is about 3479.0146593540. The cubic root of 12103543 is about 229.5994477581.

Adding to 12103543 its reverse (34530121), we get a palindrome (46633664).

It can be divided in two parts, 1210 and 3543, that added together give a triangular number (4753 = T₉₇).

The spelling of 12103543 in words is "twelve million, one hundred three thousand, five hundred forty-three".