43321424123 has 4 divisors (see below), whose sum is σ = 43322906088. Its totient is φ = 43319942160.

The previous prime is 43321424087. The next prime is 43321424129. The reversal of 43321424123 is 32142412334.

43321424123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43321424123 - 2³⁴ = 26141554939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43321424129) 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, 696233 + ... + 755898.

It is an arithmetic number, because the mean of its divisors is an integer number (10830726522).

Almost surely, 2^43321424123 is an apocalyptic number.

43321424123 is a deficient number, since it is larger than the sum of its proper divisors (1481965).

43321424123 is a wasteful number, since it uses less digits than its factorization.

43321424123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481964.

The product of its digits is 13824, while the sum is 29.

Adding to 43321424123 its reverse (32142412334), we get a palindrome (75463836457).

The spelling of 43321424123 in words is "forty-three billion, three hundred twenty-one million, four hundred twenty-four thousand, one hundred twenty-three".