12028103 has 4 divisors (see below), whose sum is σ = 12551088. Its totient is φ = 11505120.

The previous prime is 12028073. The next prime is 12028109. The reversal of 12028103 is 30182021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12028103 - 2¹² = 12024007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028109) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 261458 + ... + 261503.

It is an arithmetic number, because the mean of its divisors is an integer number (3137772).

Almost surely, 2^12028103 is an apocalyptic number.

12028103 is a deficient number, since it is larger than the sum of its proper divisors (522985).

12028103 is an equidigital number, since it uses as much as digits as its factorization.

12028103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522984.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12028103 is about 3468.1555616783. The cubic root of 12028103 is about 229.1214308657.

The spelling of 12028103 in words is "twelve million, twenty-eight thousand, one hundred three".