43321132123 has 2 divisors, whose sum is σ = 43321132124. Its totient is φ = 43321132122.

The previous prime is 43321132117. The next prime is 43321132157. The reversal of 43321132123 is 32123112334.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43321132123 is a prime.

It is not a weakly prime, because it can be changed into another prime (43321132223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21660566061 + 21660566062.

It is an arithmetic number, because the mean of its divisors is an integer number (21660566062).

Almost surely, 2^43321132123 is an apocalyptic number.

43321132123 is a deficient number, since it is larger than the sum of its proper divisors (1).

43321132123 is an equidigital number, since it uses as much as digits as its factorization.

43321132123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

Adding to 43321132123 its reverse (32123112334), we get a palindrome (75444244457).

The spelling of 43321132123 in words is "forty-three billion, three hundred twenty-one million, one hundred thirty-two thousand, one hundred twenty-three".