10012003 has 4 divisors (see below), whose sum is σ = 10038528.
Its totient is φ = 9985480.
The previous prime is 10012001. The next prime is 10012019. The reversal of 10012003 is 30021001.
Adding to 10012003 its reverse (30021001), we get a palindrome (40033004).
It can be divided in two parts, 1001 and 2003, that multiplied together give a triangular number (2005003 = T2002).
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 10012003 - 21 = 10012001 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (10012001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12688 + ... + 13453.
It is an arithmetic number, because the mean of its divisors is an integer number (2509632).
Almost surely, 210012003 is an apocalyptic number.
10012003 is a deficient number, since it is larger than the sum of its proper divisors (26525).
10012003 is an equidigital number, since it uses as much as digits as its factorization.
10012003 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26524.
The product of its (nonzero) digits is 6, while the sum is 7.
The square root of 10012003 is about 3164.1749319530.
The cubic root of 10012003 is about 215.5296334699.
The spelling of 10012003 in words is "ten million, twelve thousand, three".