43134121056 has 96 divisors (see below), whose sum is σ = 121990675968. Its totient is φ = 13266178560.

The previous prime is 43134121049. The next prime is 43134121057. The reversal of 43134121056 is 65012143134.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43134121057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3446971 + ... + 3459461.

It is an arithmetic number, because the mean of its divisors is an integer number (1270736208).

Almost surely, 2^43134121056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43134121056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60995337984).

43134121056 is an abundant number, since it is smaller than the sum of its proper divisors (78856554912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43134121056 is a wasteful number, since it uses less digits than its factorization.

43134121056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15284 (or 15276 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 43134121056 in words is "forty-three billion, one hundred thirty-four million, one hundred twenty-one thousand, fifty-six".