43421313133 has 8 divisors (see below), whose sum is σ = 47939413536. Its totient is φ = 38998330800.

The previous prime is 43421313059. The next prime is 43421313191. The reversal of 43421313133 is 33131312434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43421313133 - 2²⁹ = 42884442221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421313193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23778558 + ... + 23780383.

It is an arithmetic number, because the mean of its divisors is an integer number (5992426692).

Almost surely, 2^43421313133 is an apocalyptic number.

It is an amenable number.

43421313133 is a deficient number, since it is larger than the sum of its proper divisors (4518100403).

43421313133 is a wasteful number, since it uses less digits than its factorization.

43421313133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47559035.

The product of its digits is 7776, while the sum is 28.

Adding to 43421313133 its reverse (33131312434), we get a palindrome (76552625567).

The spelling of 43421313133 in words is "forty-three billion, four hundred twenty-one million, three hundred thirteen thousand, one hundred thirty-three".