4321731056412 has 288 divisors, whose sum is σ = 13074953955840. Its totient is φ = 1098248686080.

The previous prime is 4321731056407. The next prime is 4321731056413. The reversal of 4321731056412 is 2146501371234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321731056413) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 123049078 + ... + 123084194.

It is an arithmetic number, because the mean of its divisors is an integer number (45399145680).

Almost surely, 2^{4321731056412} is an apocalyptic number.

4321731056412 is a gapful number since it is divisible by the number (42) 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 4321731056412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6537476977920).

4321731056412 is an abundant number, since it is smaller than the sum of its proper divisors (8753222899428).

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

4321731056412 is a wasteful number, since it uses less digits than its factorization.

4321731056412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35561 (or 35552 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 4321731056412 in words is "four trillion, three hundred twenty-one billion, seven hundred thirty-one million, fifty-six thousand, four hundred twelve".