42143323 has 4 divisors (see below), whose sum is σ = 44622360. Its totient is φ = 39664288.

The previous prime is 42143317. The next prime is 42143327. The reversal of 42143323 is 32334124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42143323 - 2¹⁷ = 42012251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42143294 and 42143303.

It is not an unprimeable number, because it can be changed into a prime (42143327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239493 + ... + 1239526.

It is an arithmetic number, because the mean of its divisors is an integer number (11155590).

Almost surely, 2^42143323 is an apocalyptic number.

42143323 is a deficient number, since it is larger than the sum of its proper divisors (2479037).

42143323 is a wasteful number, since it uses less digits than its factorization.

42143323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479036.

The product of its digits is 1728, while the sum is 22.

The square root of 42143323 is about 6491.7888905909. The cubic root of 42143323 is about 347.9976081000.

Adding to 42143323 its reverse (32334124), we get a palindrome (74477447).

The spelling of 42143323 in words is "forty-two million, one hundred forty-three thousand, three hundred twenty-three".