123002143 has 16 divisors (see below), whose sum is σ = 142669440. Its totient is φ = 104868000.

The previous prime is 123002129. The next prime is 123002147. The reversal of 123002143 is 341200321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123002143 - 2¹³ = 122993951 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 (123002147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18196 + ... + 24022.

It is an arithmetic number, because the mean of its divisors is an integer number (8916840).

Almost surely, 2^123002143 is an apocalyptic number.

123002143 is a deficient number, since it is larger than the sum of its proper divisors (19667297).

123002143 is a wasteful number, since it uses less digits than its factorization.

123002143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5958.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123002143 is about 11090.6331198900. The cubic root of 123002143 is about 497.3218715339.

Adding to 123002143 its reverse (341200321), we get a palindrome (464202464).

The spelling of 123002143 in words is "one hundred twenty-three million, two thousand, one hundred forty-three".