11813604054012 has 72 divisors (see below), whose sum is σ = 30402921983616. Its totient is φ = 3867127710624.

The previous prime is 11813604054011. The next prime is 11813604054013. The reversal of 11813604054012 is 21045040631811.

11813604054012 is a `hidden beast` number, since 1 + 1 + 8 + 1 + 3 + 60 + 40 + 540 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (11813604054011) and next prime (11813604054013).

It is a super-2 number, since 2×11813604054012² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11813604054011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11338378 + ... + 12336369.

It is an arithmetic number, because the mean of its divisors is an integer number (422262805328).

Almost surely, 2^{11813604054012} is an apocalyptic number.

11813604054012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11813604054012 is an abundant number, since it is smaller than the sum of its proper divisors (18589317929604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11813604054012 is a wasteful number, since it uses less digits than its factorization.

11813604054012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23675007 (or 23675002 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

Adding to 11813604054012 its reverse (21045040631811), we get a palindrome (32858644685823).

The spelling of 11813604054012 in words is "eleven trillion, eight hundred thirteen billion, six hundred four million, fifty-four thousand, twelve".