11154450305 has 4 divisors (see below), whose sum is σ = 13385340372. Its totient is φ = 8923560240.

The previous prime is 11154450299. The next prime is 11154450317. The reversal of 11154450305 is 50305445111.

11154450305 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 3639467584 + 7514982721 = 60328^2 + 86689^2 .

It is not a de Polignac number, because 11154450305 - 2⁸ = 11154450049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1115445026 + ... + 1115445035.

It is an arithmetic number, because the mean of its divisors is an integer number (3346335093).

Almost surely, 2^11154450305 is an apocalyptic number.

It is an amenable number.

11154450305 is a deficient number, since it is larger than the sum of its proper divisors (2230890067).

11154450305 is an equidigital number, since it uses as much as digits as its factorization.

11154450305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230890066.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 11154450305 its reverse (50305445111), we get a palindrome (61459895416).

The spelling of 11154450305 in words is "eleven billion, one hundred fifty-four million, four hundred fifty thousand, three hundred five".