11123303201 has 4 divisors (see below), whose sum is σ = 11777615172. Its totient is φ = 10468991232.

The previous prime is 11123303179. The next prime is 11123303237. The reversal of 11123303201 is 10230332111.

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 9912193600 + 1211109601 = 99560^2 + 34801^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123303201 - 2⁶ = 11123303137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 654311953 = 11123303201 / (1 + 1 + 1 + 2 + 3 + 3 + 0 + 3 + 2 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11123303201.

It is not an unprimeable number, because it can be changed into a prime (11123303101) 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, 327155960 + ... + 327155993.

It is an arithmetic number, because the mean of its divisors is an integer number (2944403793).

Almost surely, 2^11123303201 is an apocalyptic number.

It is an amenable number.

11123303201 is a deficient number, since it is larger than the sum of its proper divisors (654311971).

11123303201 is an equidigital number, since it uses as much as digits as its factorization.

11123303201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654311970.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11123303201 its reverse (10230332111), we get a palindrome (21353635312).

The spelling of 11123303201 in words is "eleven billion, one hundred twenty-three million, three hundred three thousand, two hundred one".