43406053421023 has 2 divisors, whose sum is σ = 43406053421024. Its totient is φ = 43406053421022.

The previous prime is 43406053421009. The next prime is 43406053421053. The reversal of 43406053421023 is 32012435060434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43406053421023 - 2⁵ = 43406053420991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43406053421053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21703026710511 + 21703026710512.

It is an arithmetic number, because the mean of its divisors is an integer number (21703026710512).

Almost surely, 2^{43406053421023} is an apocalyptic number.

43406053421023 is a deficient number, since it is larger than the sum of its proper divisors (1).

43406053421023 is an equidigital number, since it uses as much as digits as its factorization.

43406053421023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 43406053421023 its reverse (32012435060434), we get a palindrome (75418488481457).

The spelling of 43406053421023 in words is "forty-three trillion, four hundred six billion, fifty-three million, four hundred twenty-one thousand, twenty-three".