113215055418 has 24 divisors (see below), whose sum is σ = 245313607188. Its totient is φ = 37736148672.

The previous prime is 113215055417. The next prime is 113215055467. The reversal of 113215055418 is 814550512311.

113215055418 is a `hidden beast` number, since 1 + 132 + 1 + 505 + 5 + 4 + 18 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 113035146849 + 179908569 = 336207^2 + 13413^2 .

It is a super-2 number, since 2×113215055418² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113215055417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149646 + ... + 498822.

Almost surely, 2^113215055418 is an apocalyptic number.

113215055418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

113215055418 is an abundant number, since it is smaller than the sum of its proper divisors (132098551770).

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

113215055418 is a wasteful number, since it uses less digits than its factorization.

113215055418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367198 (or 367195 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

Adding to 113215055418 its reverse (814550512311), we get a palindrome (927765567729).

The spelling of 113215055418 in words is "one hundred thirteen billion, two hundred fifteen million, fifty-five thousand, four hundred eighteen".