11821063 has 4 divisors (see below), whose sum is σ = 12021480. Its totient is φ = 11620648.

The previous prime is 11821031. The next prime is 11821081. The reversal of 11821063 is 36012811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36012811 = 53 ⋅679487.

It is a cyclic number.

It is not a de Polignac number, because 11821063 - 2⁵ = 11821031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821163) 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, 100120 + ... + 100237.

It is an arithmetic number, because the mean of its divisors is an integer number (3005370).

Almost surely, 2^11821063 is an apocalyptic number.

11821063 is a deficient number, since it is larger than the sum of its proper divisors (200417).

11821063 is an equidigital number, since it uses as much as digits as its factorization.

11821063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200416.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 11821063 is about 3438.1772787336. The cubic root of 11821063 is about 227.7991909452.

Adding to 11821063 its reverse (36012811), we get a palindrome (47833874).

The spelling of 11821063 in words is "eleven million, eight hundred twenty-one thousand, sixty-three".