43023421320 has 128 divisors (see below), whose sum is σ = 141737057280. Its totient is φ = 10360800000.

The previous prime is 43023421249. The next prime is 43023421333. The reversal of 43023421320 is 2312432034.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91395 + ... + 307245.

It is an arithmetic number, because the mean of its divisors is an integer number (1107320760).

Almost surely, 2^43023421320 is an apocalyptic number.

43023421320 is a gapful number since it is divisible by the number (40) 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 43023421320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70868528640).

43023421320 is an abundant number, since it is smaller than the sum of its proper divisors (98713635960).

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

43023421320 is a wasteful number, since it uses less digits than its factorization.

43023421320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216027 (or 216023 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 43023421320 its reverse (2312432034), we get a palindrome (45335853354).

The spelling of 43023421320 in words is "forty-three billion, twenty-three million, four hundred twenty-one thousand, three hundred twenty".