11201299997 has 4 divisors (see below), whose sum is σ = 11201517276. Its totient is φ = 11201082720.

The previous prime is 11201299987. The next prime is 11201300003. The reversal of 11201299997 is 79999210211.

11201299997 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 can be written as a sum of positive squares in 2 ways, for example, as 217002361 + 10984297636 = 14731^2 + 104806^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201299997 - 2⁴ = 11201299981 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 (11201299987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17543 + ... + 150699.

It is an arithmetic number, because the mean of its divisors is an integer number (2800379319).

Almost surely, 2^11201299997 is an apocalyptic number.

It is an amenable number.

11201299997 is a deficient number, since it is larger than the sum of its proper divisors (217279).

11201299997 is an equidigital number, since it uses as much as digits as its factorization.

11201299997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217278.

The product of its (nonzero) digits is 183708, while the sum is 50.

The spelling of 11201299997 in words is "eleven billion, two hundred one million, two hundred ninety-nine thousand, nine hundred ninety-seven".