120871 has 2 divisors, whose sum is σ = 120872. Its totient is φ = 120870.

The previous prime is 120863. The next prime is 120877. The reversal of 120871 is 178021.

It is a strong prime.

It is an emirp because it is prime and its reverse (178021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120871 - 2³ = 120863 is a prime.

120871 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60435 + 60436.

It is an arithmetic number, because the mean of its divisors is an integer number (60436).

2¹²⁰⁸⁷¹ is an apocalyptic number.

120871 is a deficient number, since it is larger than the sum of its proper divisors (1).

120871 is an equidigital number, since it uses as much as digits as its factorization.

120871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 120871 is about 347.6650687084. The cubic root of 120871 is about 49.4432911774.

Adding to 120871 its reverse (178021), we get a palindrome (298892).

The spelling of 120871 in words is "one hundred twenty thousand, eight hundred seventy-one".