11011983 has 4 divisors (see below), whose sum is σ = 14682648. Its totient is φ = 7341320.

The previous prime is 11011981. The next prime is 11011993. The reversal of 11011983 is 38911011.

11011983 is digitally balanced in base 3, 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 11011983 - 2¹ = 11011981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011981) 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 in 3 ways as a sum of consecutive naturals, for example, 1835328 + ... + 1835333.

It is an arithmetic number, because the mean of its divisors is an integer number (3670662).

Almost surely, 2^11011983 is an apocalyptic number.

11011983 is a deficient number, since it is larger than the sum of its proper divisors (3670665).

11011983 is an equidigital number, since it uses as much as digits as its factorization.

11011983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670664.

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 11011983 is about 3318.4308038590. The cubic root of 11011983 is about 222.4787371846.

Adding to 11011983 its reverse (38911011), we get a palindrome (49922994).

The spelling of 11011983 in words is "eleven million, eleven thousand, nine hundred eighty-three".