123321143 has 10 divisors (see below), whose sum is σ = 135668520. Its totient is φ = 112096820.

The previous prime is 123321127. The next prime is 123321161. The reversal of 123321143 is 341123321.

It is not a de Polignac number, because 123321143 - 2⁴ = 123321127 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 (123321103) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10430 + ... + 18852.

It is an arithmetic number, because the mean of its divisors is an integer number (13566852).

Almost surely, 2^123321143 is an apocalyptic number.

123321143 is a deficient number, since it is larger than the sum of its proper divisors (12347377).

123321143 is an frugal number, since it uses more digits than its factorization.

123321143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467 (or 8434 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 123321143 is about 11105.0053129208. The cubic root of 123321143 is about 497.7514269975.

Adding to 123321143 its reverse (341123321), we get a palindrome (464444464).

The spelling of 123321143 in words is "one hundred twenty-three million, three hundred twenty-one thousand, one hundred forty-three".