123143 has 2 divisors, whose sum is σ = 123144. Its totient is φ = 123142.

The previous prime is 123127. The next prime is 123169. The reversal of 123143 is 341321.

It is a weak prime.

It is an emirp because it is prime and its reverse (341321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123143 - 2⁴ = 123127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61571 + 61572.

It is an arithmetic number, because the mean of its divisors is an integer number (61572).

2¹²³¹⁴³ is an apocalyptic number.

123143 is a deficient number, since it is larger than the sum of its proper divisors (1).

123143 is an equidigital number, since it uses as much as digits as its factorization.

123143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 14.

The square root of 123143 is about 350.9173691911. The cubic root of 123143 is about 49.7511636639.

Adding to 123143 its reverse (341321), we get a palindrome (464464).

The spelling of 123143 in words is "one hundred twenty-three thousand, one hundred forty-three", and thus it is an iban number.