11211203 has 2 divisors, whose sum is σ = 11211204. Its totient is φ = 11211202.

The previous prime is 11211169. The next prime is 11211209. The reversal of 11211203 is 30211211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11211203 - 2²² = 7016899 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605601 + 5605602.

It is an arithmetic number, because the mean of its divisors is an integer number (5605602).

Almost surely, 2^11211203 is an apocalyptic number.

11211203 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211203 is an equidigital number, since it uses as much as digits as its factorization.

11211203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11211203 is about 3348.3134560552. The cubic root of 11211203 is about 223.8123627964.

Adding to 11211203 its reverse (30211211), we get a palindrome (41422414).

The spelling of 11211203 in words is "eleven million, two hundred eleven thousand, two hundred three".