43094815057321 has 2 divisors, whose sum is σ = 43094815057322. Its totient is φ = 43094815057320.

The previous prime is 43094815057277. The next prime is 43094815057409. The reversal of 43094815057321 is 12375051849034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25349321805721 + 17745493251600 = 5034811^2 + 4212540^2 .

It is a cyclic number.

It is not a de Polignac number, because 43094815057321 - 2²⁷ = 43094680839593 is a prime.

It is not a weakly prime, because it can be changed into another prime (43094815052321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21547407528660 + 21547407528661.

It is an arithmetic number, because the mean of its divisors is an integer number (21547407528661).

Almost surely, 2^{43094815057321} is an apocalyptic number.

It is an amenable number.

43094815057321 is a deficient number, since it is larger than the sum of its proper divisors (1).

43094815057321 is an equidigital number, since it uses as much as digits as its factorization.

43094815057321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 43094815057321 in words is "forty-three trillion, ninety-four billion, eight hundred fifteen million, fifty-seven thousand, three hundred twenty-one".