43201321324 has 48 divisors (see below), whose sum is σ = 88752061440. Its totient is φ = 18013875840.

The previous prime is 43201321321. The next prime is 43201321327. The reversal of 43201321324 is 42312310234.

It is an interprime number because it is at equal distance from previous prime (43201321321) and next prime (43201321327).

It is a super-2 number, since 2×43201321324² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43201321321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370047 + ... + 472585.

It is an arithmetic number, because the mean of its divisors is an integer number (1849001280).

Almost surely, 2^43201321324 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 43201321324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44376030720).

43201321324 is an abundant number, since it is smaller than the sum of its proper divisors (45550740116).

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

43201321324 is a wasteful number, since it uses less digits than its factorization.

43201321324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102958 (or 102956 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 43201321324 its reverse (42312310234), we get a palindrome (85513631558).

The spelling of 43201321324 in words is "forty-three billion, two hundred one million, three hundred twenty-one thousand, three hundred twenty-four".