43123120134131 has 8 divisors (see below), whose sum is σ = 43521927556800. Its totient is φ = 42724370574720.

The previous prime is 43123120134053. The next prime is 43123120134151. The reversal of 43123120134131 is 13143102132134.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43123120134131 is a prime.

It is a super-2 number, since 2×43123120134131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43123120134094 and 43123120134103.

It is not an unprimeable number, because it can be changed into a prime (43123120134151) 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, 12967691 + ... + 15950148.

It is an arithmetic number, because the mean of its divisors is an integer number (5440240944600).

Almost surely, 2^{43123120134131} is an apocalyptic number.

43123120134131 is a deficient number, since it is larger than the sum of its proper divisors (398807422669).

43123120134131 is a wasteful number, since it uses less digits than its factorization.

43123120134131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28931629.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 43123120134131 its reverse (13143102132134), we get a palindrome (56266222266265).

The spelling of 43123120134131 in words is "forty-three trillion, one hundred twenty-three billion, one hundred twenty million, one hundred thirty-four thousand, one hundred thirty-one".