11820243201 has 16 divisors (see below), whose sum is σ = 16986856320. Its totient is φ = 7267910400.

The previous prime is 11820243173. The next prime is 11820243203. The reversal of 11820243201 is 10234202811.

It is not a de Polignac number, because 11820243201 - 2⁹ = 11820242689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11820243203) 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 15 ways as a sum of consecutive naturals, for example, 79341 + ... + 173018.

It is an arithmetic number, because the mean of its divisors is an integer number (1061678520).

Almost surely, 2^11820243201 is an apocalyptic number.

It is an amenable number.

11820243201 is a deficient number, since it is larger than the sum of its proper divisors (5166613119).

11820243201 is a wasteful number, since it uses less digits than its factorization.

11820243201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253576.

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 11820243201 in words is "eleven billion, eight hundred twenty million, two hundred forty-three thousand, two hundred one".