4043243200321 has 32 divisors (see below), whose sum is σ = 4630600185120. Its totient is φ = 3497320206336.

The previous prime is 4043243200313. The next prime is 4043243200343. The reversal of 4043243200321 is 1230023423404.

It can be written as a sum of positive squares in 16 ways, for example, as 1624095360000 + 2419147840321 = 1274400^2 + 1555361^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043243200321 - 2³ = 4043243200313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4043243200321.

It is not an unprimeable number, because it can be changed into a prime (4043243200621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47842515 + ... + 47926951.

It is an arithmetic number, because the mean of its divisors is an integer number (144706255785).

Almost surely, 2^{4043243200321} is an apocalyptic number.

It is an amenable number.

4043243200321 is a deficient number, since it is larger than the sum of its proper divisors (587356984799).

4043243200321 is a wasteful number, since it uses less digits than its factorization.

4043243200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85413.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 4043243200321 its reverse (1230023423404), we get a palindrome (5273266623725).

The spelling of 4043243200321 in words is "four trillion, forty-three billion, two hundred forty-three million, two hundred thousand, three hundred twenty-one".