11143903 has 2 divisors, whose sum is σ = 11143904. Its totient is φ = 11143902.

The previous prime is 11143901. The next prime is 11143921. The reversal of 11143903 is 30934111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11143903 - 2¹ = 11143901 is a prime.

Together with 11143901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11143901) 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, 5571951 + 5571952.

It is an arithmetic number, because the mean of its divisors is an integer number (5571952).

Almost surely, 2^11143903 is an apocalyptic number.

11143903 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143903 is an equidigital number, since it uses as much as digits as its factorization.

11143903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 11143903 is about 3338.2484928477. The cubic root of 11143903 is about 223.3636208026.

The spelling of 11143903 in words is "eleven million, one hundred forty-three thousand, nine hundred three".