11311148563 has 16 divisors (see below), whose sum is σ = 13425634656. Its totient is φ = 9394007040.

The previous prime is 11311148549. The next prime is 11311148579. The reversal of 11311148563 is 36584111311.

It is not a de Polignac number, because 11311148563 - 2¹³ = 11311140371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311118563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393856 + ... + 421597.

It is an arithmetic number, because the mean of its divisors is an integer number (839102166).

Almost surely, 2^11311148563 is an apocalyptic number.

11311148563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11311148563 is a deficient number, since it is larger than the sum of its proper divisors (2114486093).

11311148563 is a wasteful number, since it uses less digits than its factorization.

11311148563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815574.

The product of its digits is 8640, while the sum is 34.

Adding to 11311148563 its reverse (36584111311), we get a palindrome (47895259874).

The spelling of 11311148563 in words is "eleven billion, three hundred eleven million, one hundred forty-eight thousand, five hundred sixty-three".