43030420321 has 48 divisors (see below), whose sum is σ = 51491607552. Its totient is φ = 35220744000.

The previous prime is 43030420271. The next prime is 43030420337. The reversal of 43030420321 is 12302403034.

It is a happy number.

It is not a de Polignac number, because 43030420321 - 2¹³ = 43030412129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43030420292 and 43030420301.

It is not an unprimeable number, because it can be changed into a prime (43030420351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189561210 + ... + 189561436.

It is an arithmetic number, because the mean of its divisors is an integer number (1072741824).

Almost surely, 2^43030420321 is an apocalyptic number.

It is an amenable number.

43030420321 is a deficient number, since it is larger than the sum of its proper divisors (8461187231).

43030420321 is a wasteful number, since it uses less digits than its factorization.

43030420321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 43030420321 its reverse (12302403034), we get a palindrome (55332823355).

The spelling of 43030420321 in words is "forty-three billion, thirty million, four hundred twenty thousand, three hundred twenty-one".