43034233421 has 4 divisors (see below), whose sum is σ = 44905287072. Its totient is φ = 41163179772.

The previous prime is 43034233321. The next prime is 43034233453. The reversal of 43034233421 is 12433243034.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12433243034 = 2 ⋅6216621517.

It is a cyclic number.

It is not a de Polignac number, because 43034233421 - 2³⁰ = 41960491597 is a prime.

It is a super-3 number, since 3×43034233421³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43034233321) 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 3 ways as a sum of consecutive naturals, for example, 935526791 + ... + 935526836.

It is an arithmetic number, because the mean of its divisors is an integer number (11226321768).

Almost surely, 2^43034233421 is an apocalyptic number.

It is an amenable number.

43034233421 is a deficient number, since it is larger than the sum of its proper divisors (1871053651).

43034233421 is a wasteful number, since it uses less digits than its factorization.

43034233421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871053650.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 43034233421 its reverse (12433243034), we get a palindrome (55467476455).

The spelling of 43034233421 in words is "forty-three billion, thirty-four million, two hundred thirty-three thousand, four hundred twenty-one".