12039353323172 has 72 divisors (see below), whose sum is σ = 25135271685216. Its totient is φ = 5028351374592.

The previous prime is 12039353323171. The next prime is 12039353323229. The reversal of 12039353323172 is 27132335393021.

It is not an unprimeable number, because it can be changed into a prime (12039353323171) 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, 2121308 + ... + 5345900.

It is an arithmetic number, because the mean of its divisors is an integer number (349100995628).

Almost surely, 2^{12039353323172} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12039353323172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12567635842608).

12039353323172 is an abundant number, since it is smaller than the sum of its proper divisors (13095918362044).

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

12039353323172 is a wasteful number, since it uses less digits than its factorization.

12039353323172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225097 (or 3225088 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 44.

The spelling of 12039353323172 in words is "twelve trillion, thirty-nine billion, three hundred fifty-three million, three hundred twenty-three thousand, one hundred seventy-two".