11823400911 has 32 divisors (see below), whose sum is σ = 18113154048. Its totient is φ = 6720111360.

The previous prime is 11823400909. The next prime is 11823400913. The reversal of 11823400911 is 11900432811.

It is an interprime number because it is at equal distance from previous prime (11823400909) and next prime (11823400913).

It is not a de Polignac number, because 11823400911 - 2¹ = 11823400909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11823400913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4842451 + ... + 4844891.

It is an arithmetic number, because the mean of its divisors is an integer number (566036064).

Almost surely, 2^11823400911 is an apocalyptic number.

11823400911 is a deficient number, since it is larger than the sum of its proper divisors (6289753137).

11823400911 is a wasteful number, since it uses less digits than its factorization.

11823400911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591.

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 11823400911 in words is "eleven billion, eight hundred twenty-three million, four hundred thousand, nine hundred eleven".