11811310385 has 64 divisors (see below), whose sum is σ = 18116697600. Its totient is φ = 7207667712.

The previous prime is 11811310363. The next prime is 11811310387. The reversal of 11811310385 is 58301311811.

It is a happy number.

It is not a de Polignac number, because 11811310385 - 2⁶ = 11811310321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11811310387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 705269 + ... + 721821.

It is an arithmetic number, because the mean of its divisors is an integer number (283073400).

Almost surely, 2^11811310385 is an apocalyptic number.

It is an amenable number.

11811310385 is a deficient number, since it is larger than the sum of its proper divisors (6305387215).

11811310385 is a wasteful number, since it uses less digits than its factorization.

11811310385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16650.

The product of its (nonzero) digits is 2880, while the sum is 32.

The spelling of 11811310385 in words is "eleven billion, eight hundred eleven million, three hundred ten thousand, three hundred eighty-five".