120143423 has 4 divisors (see below), whose sum is σ = 121309968. Its totient is φ = 118976880.

The previous prime is 120143417. The next prime is 120143453. The reversal of 120143423 is 324341021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324341021 = 367 ⋅883763.

It is a cyclic number.

It is not a de Polignac number, because 120143423 - 2⁸ = 120143167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120143395 and 120143404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120143453) 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 3 ways as a sum of consecutive naturals, for example, 583118 + ... + 583323.

It is an arithmetic number, because the mean of its divisors is an integer number (30327492).

Almost surely, 2^120143423 is an apocalyptic number.

120143423 is a deficient number, since it is larger than the sum of its proper divisors (1166545).

120143423 is a wasteful number, since it uses less digits than its factorization.

120143423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166544.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 120143423 is about 10960.9955296041. The cubic root of 120143423 is about 493.4388430384.

Adding to 120143423 its reverse (324341021), we get a palindrome (444484444).

The spelling of 120143423 in words is "one hundred twenty million, one hundred forty-three thousand, four hundred twenty-three".