11103993 has 8 divisors (see below), whose sum is σ = 16450400. Its totient is φ = 7402644.

The previous prime is 11103979. The next prime is 11104007. The reversal of 11103993 is 39930111.

It is an interprime number because it is at equal distance from previous prime (11103979) and next prime (11104007).

It is not a de Polignac number, because 11103993 - 2⁶ = 11103929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 411259 = 11103993 / (1 + 1 + 1 + 0 + 3 + 9 + 9 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11103913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205603 + ... + 205656.

It is an arithmetic number, because the mean of its divisors is an integer number (2056300).

Almost surely, 2^11103993 is an apocalyptic number.

It is an amenable number.

11103993 is a deficient number, since it is larger than the sum of its proper divisors (5346407).

11103993 is an equidigital number, since it uses as much as digits as its factorization.

11103993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411268 (or 411262 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 11103993 is about 3332.2654456090. The cubic root of 11103993 is about 223.0966555337.

The spelling of 11103993 in words is "eleven million, one hundred three thousand, nine hundred ninety-three".