11203904 has 14 divisors (see below), whose sum is σ = 22232874. Its totient is φ = 5601920.

The previous prime is 11203891. The next prime is 11203909. The reversal of 11203904 is 40930211.

It can be written as a sum of positive squares in only one way, i.e., 6150400 + 5053504 = 2480^2 + 2248^2 .

It is a super-3 number, since 3×11203904³ (a number of 22 digits) contains 333 as substring.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203909) 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, 87467 + ... + 87594.

Almost surely, 2^11203904 is an apocalyptic number.

It is an amenable number.

11203904 is a deficient number, since it is larger than the sum of its proper divisors (11028970).

11203904 is an equidigital number, since it uses as much as digits as its factorization.

11203904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175073 (or 175063 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11203904 is about 3347.2233268786. The cubic root of 11203904 is about 223.7637815965.

The spelling of 11203904 in words is "eleven million, two hundred three thousand, nine hundred four".