1223203 has 2 divisors, whose sum is σ = 1223204. Its totient is φ = 1223202.

The previous prime is 1223197. The next prime is 1223207. The reversal of 1223203 is 3023221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611601 + 611602.

It is an arithmetic number, because the mean of its divisors is an integer number (611602).

2^1223203 is an apocalyptic number.

1223203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223203 is an equidigital number, since it uses as much as digits as its factorization.

1223203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1223203 is about 1105.9850812737. The cubic root of 1223203 is about 106.9464022480.

Adding to 1223203 its reverse (3023221), we get a palindrome (4246424).

The spelling of 1223203 in words is "one million, two hundred twenty-three thousand, two hundred three".