43091480320001 has 2 divisors, whose sum is σ = 43091480320002. Its totient is φ = 43091480320000.

The previous prime is 43091480319941. The next prime is 43091480320073. The reversal of 43091480320001 is 10002308419034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39342048360976 + 3749431959025 = 6272324^2 + 1936345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43091480320001 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (43091480320501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21545740160000 + 21545740160001.

It is an arithmetic number, because the mean of its divisors is an integer number (21545740160001).

Almost surely, 2^{43091480320001} is an apocalyptic number.

It is an amenable number.

43091480320001 is a deficient number, since it is larger than the sum of its proper divisors (1).

43091480320001 is an equidigital number, since it uses as much as digits as its factorization.

43091480320001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

Adding to 43091480320001 its reverse (10002308419034), we get a palindrome (53093788739035).

The spelling of 43091480320001 in words is "forty-three trillion, ninety-one billion, four hundred eighty million, three hundred twenty thousand, one".