40305109171 has 2 divisors, whose sum is σ = 40305109172. Its totient is φ = 40305109170.

The previous prime is 40305109151. The next prime is 40305109181. The reversal of 40305109171 is 17190150304.

40305109171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40305109171 - 2²⁷ = 40170891443 is a prime.

It is not a weakly prime, because it can be changed into another prime (40305109151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20152554585 + 20152554586.

It is an arithmetic number, because the mean of its divisors is an integer number (20152554586).

Almost surely, 2^40305109171 is an apocalyptic number.

40305109171 is a deficient number, since it is larger than the sum of its proper divisors (1).

40305109171 is an equidigital number, since it uses as much as digits as its factorization.

40305109171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

Adding to 40305109171 its reverse (17190150304), we get a palindrome (57495259475).

The spelling of 40305109171 in words is "forty billion, three hundred five million, one hundred nine thousand, one hundred seventy-one".