11285903 has 2 divisors, whose sum is σ = 11285904. Its totient is φ = 11285902.

The previous prime is 11285899. The next prime is 11285921. The reversal of 11285903 is 30958211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11285903 - 2² = 11285899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11285983) 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, 5642951 + 5642952.

It is an arithmetic number, because the mean of its divisors is an integer number (5642952).

Almost surely, 2^11285903 is an apocalyptic number.

11285903 is a deficient number, since it is larger than the sum of its proper divisors (1).

11285903 is an equidigital number, since it uses as much as digits as its factorization.

11285903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 11285903 is about 3359.4498061439. The cubic root of 11285903 is about 224.3083484650.

It can be divided in two parts, 11285 and 903, that multiplied together give a triangular number (10190355 = T₄₅₁₄).

The spelling of 11285903 in words is "eleven million, two hundred eighty-five thousand, nine hundred three".