11985003 has 48 divisors (see below), whose sum is σ = 19475456. Its totient is φ = 7348320.

The previous prime is 11984971. The next prime is 11985019. The reversal of 11985003 is 30058911.

It is not a de Polignac number, because 11985003 - 2⁵ = 11984971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 11985003 = 51³ + 228³ = 114³ + 219³.

It is not an unprimeable number, because it can be changed into a prime (11985073) 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 47 ways as a sum of consecutive naturals, for example, 278700 + ... + 278742.

Almost surely, 2^11985003 is an apocalyptic number.

11985003 is a deficient number, since it is larger than the sum of its proper divisors (7490453).

11985003 is an equidigital number, since it uses as much as digits as its factorization.

11985003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 11985003 is about 3461.9363079063. The cubic root of 11985003 is about 228.8474349770.

The spelling of 11985003 in words is "eleven million, nine hundred eighty-five thousand, three".