11720803 has 4 divisors (see below), whose sum is σ = 12410280. Its totient is φ = 11031328.

The previous prime is 11720789. The next prime is 11720809. The reversal of 11720803 is 30802711.

11720803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11720803 - 2¹³ = 11712611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11720809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344713 + ... + 344746.

It is an arithmetic number, because the mean of its divisors is an integer number (3102570).

Almost surely, 2^11720803 is an apocalyptic number.

11720803 is a deficient number, since it is larger than the sum of its proper divisors (689477).

11720803 is an equidigital number, since it uses as much as digits as its factorization.

11720803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689476.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 11720803 is about 3423.5658311182. The cubic root of 11720803 is about 227.1533375022.

The spelling of 11720803 in words is "eleven million, seven hundred twenty thousand, eight hundred three".