12003263 has 4 divisors (see below), whose sum is σ = 12525168. Its totient is φ = 11481360.

The previous prime is 12003247. The next prime is 12003287. The reversal of 12003263 is 36230021.

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 12003263 - 2⁴ = 12003247 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 (11003263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260918 + ... + 260963.

It is an arithmetic number, because the mean of its divisors is an integer number (3131292).

Almost surely, 2^12003263 is an apocalyptic number.

12003263 is a deficient number, since it is larger than the sum of its proper divisors (521905).

12003263 is an equidigital number, since it uses as much as digits as its factorization.

12003263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521904.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 12003263 is about 3464.5725566078. The cubic root of 12003263 is about 228.9635977555.

Adding to 12003263 its reverse (36230021), we get a palindrome (48233284).

The spelling of 12003263 in words is "twelve million, three thousand, two hundred sixty-three".