11563047305 has 4 divisors (see below), whose sum is σ = 13875656772. Its totient is φ = 9250437840.

The previous prime is 11563047257. The next prime is 11563047319. The reversal of 11563047305 is 50374036511.

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 2197453129 + 9365594176 = 46877^2 + 96776^2 .

It is not a de Polignac number, because 11563047305 - 2¹⁶ = 11562981769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156304726 + ... + 1156304735.

It is an arithmetic number, because the mean of its divisors is an integer number (3468914193).

Almost surely, 2^11563047305 is an apocalyptic number.

It is an amenable number.

11563047305 is a deficient number, since it is larger than the sum of its proper divisors (2312609467).

11563047305 is an equidigital number, since it uses as much as digits as its factorization.

11563047305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312609466.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 11563047305 in words is "eleven billion, five hundred sixty-three million, forty-seven thousand, three hundred five".