323140043423 has 4 divisors (see below), whose sum is σ = 323167134888. Its totient is φ = 323112951960.

The previous prime is 323140043417. The next prime is 323140043453. The reversal of 323140043423 is 324340041323.

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 323140043423 - 2¹⁰ = 323140042399 is a prime.

It is a super-3 number, since 3×323140043423³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323140043453) 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, 13527833 + ... + 13551698.

It is an arithmetic number, because the mean of its divisors is an integer number (80791783722).

Almost surely, 2^323140043423 is an apocalyptic number.

323140043423 is a deficient number, since it is larger than the sum of its proper divisors (27091465).

323140043423 is a wasteful number, since it uses less digits than its factorization.

323140043423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27091464.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 323140043423 its reverse (324340041323), we get a palindrome (647480084746).

The spelling of 323140043423 in words is "three hundred twenty-three billion, one hundred forty million, forty-three thousand, four hundred twenty-three".