143423123 has 4 divisors (see below), whose sum is σ = 144518088. Its totient is φ = 142328160.

The previous prime is 143423117. The next prime is 143423167. The reversal of 143423123 is 321324341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321324341 = 13 ⋅24717257.

It is a cyclic number.

It is not a de Polignac number, because 143423123 - 2¹⁰ = 143422099 is a prime.

It is a super-2 number, since 2×143423123² = 41140384422146258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143425123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547286 + ... + 547547.

It is an arithmetic number, because the mean of its divisors is an integer number (36129522).

Almost surely, 2^143423123 is an apocalyptic number.

143423123 is a deficient number, since it is larger than the sum of its proper divisors (1094965).

143423123 is a wasteful number, since it uses less digits than its factorization.

143423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094964.

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

The square root of 143423123 is about 11975.9393368537. The cubic root of 143423123 is about 523.4474136559.

Adding to 143423123 its reverse (321324341), we get a palindrome (464747464).

The spelling of 143423123 in words is "one hundred forty-three million, four hundred twenty-three thousand, one hundred twenty-three".