1118274818112 has 168 divisors, whose sum is σ = 3326335740000. Its totient is φ = 372501835776.

The previous prime is 1118274818051. The next prime is 1118274818113. The reversal of 1118274818112 is 2118184728111.

1118274818112 is a `hidden beast` number, since 1 + 1 + 1 + 82 + 7 + 481 + 81 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (1118274818113) 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, 23288464 + ... + 23336432.

It is an arithmetic number, because the mean of its divisors is an integer number (19799617500).

Almost surely, 2^{1118274818112} is an apocalyptic number.

1118274818112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118274818112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663167870000).

1118274818112 is an abundant number, since it is smaller than the sum of its proper divisors (2208060921888).

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

1118274818112 is an equidigital number, since it uses as much as digits as its factorization.

1118274818112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49495 (or 49473 counting only the distinct ones).

The product of its digits is 57344, while the sum is 45.

Subtracting 1118274818112 from its reverse (2118184728111), we obtain a palindrome (999909909999).

The spelling of 1118274818112 in words is "one trillion, one hundred eighteen billion, two hundred seventy-four million, eight hundred eighteen thousand, one hundred twelve".