140012021213171 has 2 divisors, whose sum is σ = 140012021213172. Its totient is φ = 140012021213170.

The previous prime is 140012021213153. The next prime is 140012021213173. The reversal of 140012021213171 is 171312120210041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140012021213171 is a prime.

It is a super-2 number, since 2×140012021213171² (a number of 29 digits) contains 22 as substring.

Together with 140012021213173, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140012021213171.

It is not a weakly prime, because it can be changed into another prime (140012021213173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70006010606585 + 70006010606586.

It is an arithmetic number, because the mean of its divisors is an integer number (70006010606586).

Almost surely, 2^{140012021213171} is an apocalyptic number.

140012021213171 is a deficient number, since it is larger than the sum of its proper divisors (1).

140012021213171 is an equidigital number, since it uses as much as digits as its factorization.

140012021213171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

The spelling of 140012021213171 in words is "one hundred forty trillion, twelve billion, twenty-one million, two hundred thirteen thousand, one hundred seventy-one".