43128682123 has 2 divisors, whose sum is σ = 43128682124. Its totient is φ = 43128682122.

The previous prime is 43128682099. The next prime is 43128682153. The reversal of 43128682123 is 32128682134.

43128682123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43128682123 - 2²¹ = 43126584971 is a prime.

It is not a weakly prime, because it can be changed into another prime (43128682153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21564341061 + 21564341062.

It is an arithmetic number, because the mean of its divisors is an integer number (21564341062).

Almost surely, 2^43128682123 is an apocalyptic number.

43128682123 is a deficient number, since it is larger than the sum of its proper divisors (1).

43128682123 is an equidigital number, since it uses as much as digits as its factorization.

43128682123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 40.

The spelling of 43128682123 in words is "forty-three billion, one hundred twenty-eight million, six hundred eighty-two thousand, one hundred twenty-three".