1103203 has 2 divisors, whose sum is σ = 1103204. Its totient is φ = 1103202.

The previous prime is 1103191. The next prime is 1103213. The reversal of 1103203 is 3023011.

It is an a-pointer prime, because the next prime (1103213) can be obtained adding 1103203 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1103203 - 2⁵ = 1103171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103203.

It is not a weakly prime, because it can be changed into another prime (1103213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551601 + 551602.

It is an arithmetic number, because the mean of its divisors is an integer number (551602).

2^1103203 is an apocalyptic number.

1103203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103203 is an equidigital number, since it uses as much as digits as its factorization.

1103203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1103203 is about 1050.3347085572. The cubic root of 1103203 is about 103.3281081876.

Adding to 1103203 its reverse (3023011), we get a palindrome (4126214).

The spelling of 1103203 in words is "one million, one hundred three thousand, two hundred three".