2012123454018 has 64 divisors (see below), whose sum is σ = 4335124147200. Its totient is φ = 620710413120.

The previous prime is 2012123454017. The next prime is 2012123454031. The reversal of 2012123454018 is 8104543212102.

It is a self number, because there is not a number n which added to its sum of digits gives 2012123454018.

It is not an unprimeable number, because it can be changed into a prime (2012123454017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258096 + ... + 2022587.

It is an arithmetic number, because the mean of its divisors is an integer number (67736314800).

Almost surely, 2^{2012123454018} is an apocalyptic number.

2012123454018 is an abundant number, since it is smaller than the sum of its proper divisors (2323000693182).

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

2012123454018 is a wasteful number, since it uses less digits than its factorization.

2012123454018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280887.

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 2012123454018 in words is "two trillion, twelve billion, one hundred twenty-three million, four hundred fifty-four thousand, eighteen".