140043212171 has 2 divisors, whose sum is σ = 140043212172. Its totient is φ = 140043212170.

The previous prime is 140043212159. The next prime is 140043212189. The reversal of 140043212171 is 171212340041.

140043212171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140043212171 is a prime.

It is a super-2 number, since 2×140043212171² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140043212171.

It is not a weakly prime, because it can be changed into another prime (140043212471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70021606085 + 70021606086.

It is an arithmetic number, because the mean of its divisors is an integer number (70021606086).

Almost surely, 2^140043212171 is an apocalyptic number.

140043212171 is a deficient number, since it is larger than the sum of its proper divisors (1).

140043212171 is an equidigital number, since it uses as much as digits as its factorization.

140043212171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The spelling of 140043212171 in words is "one hundred forty billion, forty-three million, two hundred twelve thousand, one hundred seventy-one".