3120003 has 6 divisors (see below), whose sum is σ = 4506684. Its totient is φ = 2079996.

The previous prime is 3119999. The next prime is 3120011. The reversal of 3120003 is 3000213.

It is a happy number.

It is not a de Polignac number, because 3120003 - 2² = 3119999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 346667 = 3120003 / (3 + 1 + 2 + 0 + 0 + 0 + 3).

3120003 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3120083) 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 5 ways as a sum of consecutive naturals, for example, 173325 + ... + 173342.

It is an arithmetic number, because the mean of its divisors is an integer number (751114).

Almost surely, 2^3120003 is an apocalyptic number.

3120003 is a deficient number, since it is larger than the sum of its proper divisors (1386681).

3120003 is a wasteful number, since it uses less digits than its factorization.

3120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346673 (or 346670 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 3120003 is about 1766.3530224731. The cubic root of 3120003 is about 146.1229183155.

Adding to 3120003 its reverse (3000213), we get a palindrome (6120216).

The spelling of 3120003 in words is "three million, one hundred twenty thousand, three".