4020344321712 has 20 divisors (see below), whose sum is σ = 10385889497880. Its totient is φ = 1340114773888.

The previous prime is 4020344321711. The next prime is 4020344321813. The reversal of 4020344321712 is 2171234430204.

It is a happy number.

4020344321712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4020344321712² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4020344321711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41878586637 + ... + 41878586732.

It is an arithmetic number, because the mean of its divisors is an integer number (519294474894).

Almost surely, 2^{4020344321712} is an apocalyptic number.

It is an amenable number.

4020344321712 is an abundant number, since it is smaller than the sum of its proper divisors (6365545176168).

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

4020344321712 is a wasteful number, since it uses less digits than its factorization.

4020344321712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83757173380 (or 83757173374 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

Adding to 4020344321712 its reverse (2171234430204), we get a palindrome (6191578751916).

The spelling of 4020344321712 in words is "four trillion, twenty billion, three hundred forty-four million, three hundred twenty-one thousand, seven hundred twelve".