43033341421 has 4 divisors (see below), whose sum is σ = 49180961632. Its totient is φ = 36885721212.

The previous prime is 43033341401. The next prime is 43033341457. The reversal of 43033341421 is 12414333034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43033341421 - 2¹⁵ = 43033308653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43033341421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43033341401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073810095 + ... + 3073810108.

It is an arithmetic number, because the mean of its divisors is an integer number (12295240408).

Almost surely, 2^43033341421 is an apocalyptic number.

It is an amenable number.

43033341421 is a deficient number, since it is larger than the sum of its proper divisors (6147620211).

43033341421 is an equidigital number, since it uses as much as digits as its factorization.

43033341421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6147620210.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 43033341421 its reverse (12414333034), we get a palindrome (55447674455).

The spelling of 43033341421 in words is "forty-three billion, thirty-three million, three hundred forty-one thousand, four hundred twenty-one".