43123120134103 has 4 divisors (see below), whose sum is σ = 43135305252120. Its totient is φ = 43110935016088.

The previous prime is 43123120134053. The next prime is 43123120134151. The reversal of 43123120134103 is 30143102132134.

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 43123120134103 - 2³³ = 43114530199511 is a prime.

It is a super-3 number, since 3×43123120134103³ (a number of 42 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 (43123120194103) 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, 6092553700 + ... + 6092560777.

It is an arithmetic number, because the mean of its divisors is an integer number (10783826313030).

Almost surely, 2^{43123120134103} is an apocalyptic number.

43123120134103 is a deficient number, since it is larger than the sum of its proper divisors (12185118017).

43123120134103 is a wasteful number, since it uses less digits than its factorization.

43123120134103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12185118016.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 43123120134103 its reverse (30143102132134), we get a palindrome (73266222266237).

The spelling of 43123120134103 in words is "forty-three trillion, one hundred twenty-three billion, one hundred twenty million, one hundred thirty-four thousand, one hundred three".