123000143 has 8 divisors (see below), whose sum is σ = 143440800. Its totient is φ = 105428400.

The previous prime is 123000133. The next prime is 123000149. The reversal of 123000143 is 341000321.

It is not a de Polignac number, because 123000143 - 2¹⁸ = 122737999 is a prime.

It is a Duffinian number.

123000143 is a modest number, since divided by 143 gives 123 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123000149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178958 + ... + 179643.

It is an arithmetic number, because the mean of its divisors is an integer number (17930100).

Almost surely, 2^123000143 is an apocalyptic number.

123000143 is a deficient number, since it is larger than the sum of its proper divisors (20440657).

123000143 is an frugal number, since it uses more digits than its factorization.

123000143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358622 (or 358608 counting only the distinct ones).

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

The square root of 123000143 is about 11090.5429533454. The cubic root of 123000143 is about 497.3191760547.

Adding to 123000143 its reverse (341000321), we get a palindrome (464000464).

The spelling of 123000143 in words is "one hundred twenty-three million, one hundred forty-three", and thus it is an aban number.