12030403 has 16 divisors (see below), whose sum is σ = 15653376. Its totient is φ = 8965440.

The previous prime is 12030383. The next prime is 12030419. The reversal of 12030403 is 30403021.

It is not a de Polignac number, because 12030403 - 2⁵ = 12030371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12030433) 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 15 ways as a sum of consecutive naturals, for example, 1626 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (978336).

Almost surely, 2^12030403 is an apocalyptic number.

12030403 is a deficient number, since it is larger than the sum of its proper divisors (3622973).

12030403 is a wasteful number, since it uses less digits than its factorization.

12030403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 12030403 is about 3468.4871341840. The cubic root of 12030403 is about 229.1360340469.

Adding to 12030403 its reverse (30403021), we get a palindrome (42433424).

The spelling of 12030403 in words is "twelve million, thirty thousand, four hundred three".