12045403140012 has 144 divisors (see below), whose sum is σ = 33368637923712. Its totient is φ = 3633367069440.

The previous prime is 12045403139993. The next prime is 12045403140019. The reversal of 12045403140012 is 21004130454021.

12045403140012 is a `hidden beast` number, since 1 + 204 + 5 + 40 + 3 + 1 + 400 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (12045403140019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 707171848 + ... + 707188880.

It is an arithmetic number, because the mean of its divisors is an integer number (231726652248).

Almost surely, 2^{12045403140012} is an apocalyptic number.

12045403140012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12045403140012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16684318961856).

12045403140012 is an abundant number, since it is smaller than the sum of its proper divisors (21323234783700).

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

12045403140012 is a wasteful number, since it uses less digits than its factorization.

12045403140012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25148 (or 25143 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12045403140012 its reverse (21004130454021), we get a palindrome (33049533594033).

The spelling of 12045403140012 in words is "twelve trillion, forty-five billion, four hundred three million, one hundred forty thousand, twelve".