43303340421 has 48 divisors (see below), whose sum is σ = 70874032320. Its totient is φ = 26203201920.

The previous prime is 43303340411. The next prime is 43303340453. The reversal of 43303340421 is 12404330334.

It is not a de Polignac number, because 43303340421 - 2¹⁰ = 43303339397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43303340411) 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, 1733065 + ... + 1757873.

It is an arithmetic number, because the mean of its divisors is an integer number (1476542340).

Almost surely, 2^43303340421 is an apocalyptic number.

It is an amenable number.

43303340421 is a deficient number, since it is larger than the sum of its proper divisors (27570691899).

43303340421 is a wasteful number, since it uses less digits than its factorization.

43303340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25488 (or 25476 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 43303340421 its reverse (12404330334), we get a palindrome (55707670755).

The spelling of 43303340421 in words is "forty-three billion, three hundred three million, three hundred forty thousand, four hundred twenty-one".