43123243122133 has 8 divisors (see below), whose sum is σ = 44671378190040. Its totient is φ = 41598743704320.

The previous prime is 43123243122083. The next prime is 43123243122137. The reversal of 43123243122133 is 33122134232134.

It can be written as a sum of positive squares in 4 ways, for example, as 6958210416964 + 36165032705169 = 2637842^2 + 6013737^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 43123243122133 - 2¹³ = 43123243113941 is a prime.

It is a super-2 number, since 2×43123243122133² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43123243122137) 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, 5908908810 + ... + 5908916107.

It is an arithmetic number, because the mean of its divisors is an integer number (5583922273755).

Almost surely, 2^{43123243122133} is an apocalyptic number.

It is an amenable number.

43123243122133 is a deficient number, since it is larger than the sum of its proper divisors (1548135067907).

43123243122133 is a wasteful number, since it uses less digits than its factorization.

43123243122133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11817825047.

The product of its digits is 62208, while the sum is 34.

Adding to 43123243122133 its reverse (33122134232134), we get a palindrome (76245377354267).

The spelling of 43123243122133 in words is "forty-three trillion, one hundred twenty-three billion, two hundred forty-three million, one hundred twenty-two thousand, one hundred thirty-three".