1230003 has 12 divisors (see below), whose sum is σ = 1870440. Its totient is φ = 776736.

The previous prime is 1229999. The next prime is 1230013. The reversal of 1230003 is 3000321.

It is a happy number.

It is not a de Polignac number, because 1230003 - 2² = 1229999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1230013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3426 + ... + 3767.

It is an arithmetic number, because the mean of its divisors is an integer number (155870).

2^1230003 is an apocalyptic number.

1230003 is a deficient number, since it is larger than the sum of its proper divisors (640437).

1230003 is a wasteful number, since it uses less digits than its factorization.

1230003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7218 (or 7215 counting only the distinct ones).

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

The square root of 1230003 is about 1109.0550031446. The cubic root of 1230003 is about 107.1442140781.

Adding to 1230003 its reverse (3000321), we get a palindrome (4230324).

The spelling of 1230003 in words is "one million, two hundred thirty thousand, three".