117512112018 has 32 divisors (see below), whose sum is σ = 268620200064. Its totient is φ = 33572253312.

The previous prime is 117512112017. The next prime is 117512112023. The reversal of 117512112018 is 810211215711.

It is not an unprimeable number, because it can be changed into a prime (117512112017) 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 15 ways as a sum of consecutive naturals, for example, 467196 + ... + 673272.

It is an arithmetic number, because the mean of its divisors is an integer number (8394381252).

Almost surely, 2^117512112018 is an apocalyptic number.

117512112018 is an abundant number, since it is smaller than the sum of its proper divisors (151108088046).

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

117512112018 is a wasteful number, since it uses less digits than its factorization.

117512112018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219666.

The product of its (nonzero) digits is 1120, while the sum is 30.

Adding to 117512112018 its reverse (810211215711), we get a palindrome (927723327729).

The spelling of 117512112018 in words is "one hundred seventeen billion, five hundred twelve million, one hundred twelve thousand, eighteen".