143321423 has 6 divisors (see below), whose sum is σ = 166720896. Its totient is φ = 122846892.

The previous prime is 143321341. The next prime is 143321429. The reversal of 143321423 is 324123341.

143321423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143321423 - 2¹⁴ = 143305039 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 (143321429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1462415 + ... + 1462512.

It is an arithmetic number, because the mean of its divisors is an integer number (27786816).

Almost surely, 2^143321423 is an apocalyptic number.

143321423 is a deficient number, since it is larger than the sum of its proper divisors (23399473).

143321423 is an equidigital number, since it uses as much as digits as its factorization.

143321423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924941 (or 2924934 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 143321423 is about 11971.6925703929. The cubic root of 143321423 is about 523.3236605061.

Adding to 143321423 its reverse (324123341), we get a palindrome (467444764).

The spelling of 143321423 in words is "one hundred forty-three million, three hundred twenty-one thousand, four hundred twenty-three".