11830118238 has 24 divisors (see below), whose sum is σ = 26980972200. Its totient is φ = 3735826704.

The previous prime is 11830118233. The next prime is 11830118297. The reversal of 11830118238 is 83281103811.

11830118238 is a `hidden beast` number, since 118 + 301 + 1 + 8 + 238 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11830118233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17295153 + ... + 17295836.

It is an arithmetic number, because the mean of its divisors is an integer number (1124207175).

Almost surely, 2^11830118238 is an apocalyptic number.

11830118238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11830118238 is an abundant number, since it is smaller than the sum of its proper divisors (15150853962).

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

11830118238 is a wasteful number, since it uses less digits than its factorization.

11830118238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34591016 (or 34591013 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 11830118238 in words is "eleven billion, eight hundred thirty million, one hundred eighteen thousand, two hundred thirty-eight".