120143 has 4 divisors (see below), whose sum is σ = 120840. Its totient is φ = 119448.

The previous prime is 120121. The next prime is 120157. The reversal of 120143 is 341021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 341021 = 23 ⋅14827.

It is a cyclic number.

It is not a de Polignac number, because 120143 - 2⁶ = 120079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128 + ... + 506.

It is an arithmetic number, because the mean of its divisors is an integer number (30210).

2¹²⁰¹⁴³ is an apocalyptic number.

120143 is a deficient number, since it is larger than the sum of its proper divisors (697).

120143 is an equidigital number, since it uses as much as digits as its factorization.

120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 120143 is about 346.6165027808. The cubic root of 120143 is about 49.3438263939.

Adding to 120143 its reverse (341021), we get a palindrome (461164).

The spelling of 120143 in words is "one hundred twenty thousand, one hundred forty-three", and thus it is an iban number.