1101803 has 2 divisors, whose sum is σ = 1101804. Its totient is φ = 1101802.

The previous prime is 1101781. The next prime is 1101811. The reversal of 1101803 is 3081011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101803 - 2¹⁴ = 1085419 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1101883) 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 as a sum of consecutive naturals, namely, 550901 + 550902.

It is an arithmetic number, because the mean of its divisors is an integer number (550902).

2^1101803 is an apocalyptic number.

1101803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101803 is an equidigital number, since it uses as much as digits as its factorization.

1101803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1101803 is about 1049.6680427640. The cubic root of 1101803 is about 103.2843807905.

Adding to 1101803 its reverse (3081011), we get a palindrome (4182814).

The spelling of 1101803 in words is "one million, one hundred one thousand, eight hundred three".