11003120306 has 4 divisors (see below), whose sum is σ = 16504680462. Its totient is φ = 5501560152.

The previous prime is 11003120287. The next prime is 11003120309. The reversal of 11003120306 is 60302130011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60302130011 = 10163 ⋅5933497.

It can be written as a sum of positive squares in only one way, i.e., 10487603281 + 515517025 = 102409^2 + 22705^2 .

It is not an unprimeable number, because it can be changed into a prime (11003120309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750780075 + ... + 2750780078.

Almost surely, 2^11003120306 is an apocalyptic number.

11003120306 is a deficient number, since it is larger than the sum of its proper divisors (5501560156).

11003120306 is an equidigital number, since it uses as much as digits as its factorization.

11003120306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501560155.

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

Adding to 11003120306 its reverse (60302130011), we get a palindrome (71305250317).

The spelling of 11003120306 in words is "eleven billion, three million, one hundred twenty thousand, three hundred six".