12017868435320 has 64 divisors (see below), whose sum is σ = 29557519920000. Its totient is φ = 4361376113280.

The previous prime is 12017868435311. The next prime is 12017868435329. The reversal of 12017868435320 is 2353486871021.

It is an interprime number because it is at equal distance from previous prime (12017868435311) and next prime (12017868435329).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12017868435329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27148514 + ... + 27587633.

It is an arithmetic number, because the mean of its divisors is an integer number (461836248750).

Almost surely, 2^{12017868435320} is an apocalyptic number.

12017868435320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12017868435320 is an abundant number, since it is smaller than the sum of its proper divisors (17539651484680).

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

12017868435320 is a wasteful number, since it uses less digits than its factorization.

12017868435320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54736668 (or 54736664 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 12017868435320 in words is "twelve trillion, seventeen billion, eight hundred sixty-eight million, four hundred thirty-five thousand, three hundred twenty".