11316311811 has 72 divisors (see below), whose sum is σ = 19958983200. Its totient is φ = 6148606464.

The previous prime is 11316311803. The next prime is 11316311813. The reversal of 11316311811 is 11811361311.

11316311811 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 631 + 18 + 11 = 666.

It is not a de Polignac number, because 11316311811 - 2³ = 11316311803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11316311813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1751515 + ... + 1757963.

It is an arithmetic number, because the mean of its divisors is an integer number (277208100).

Almost surely, 2^11316311811 is an apocalyptic number.

11316311811 is a deficient number, since it is larger than the sum of its proper divisors (8642671389).

11316311811 is a wasteful number, since it uses less digits than its factorization.

11316311811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6665 (or 6655 counting only the distinct ones).

The product of its digits is 432, while the sum is 27.

The spelling of 11316311811 in words is "eleven billion, three hundred sixteen million, three hundred eleven thousand, eight hundred eleven".