304320143123 has 4 divisors (see below), whose sum is σ = 304428715368. Its totient is φ = 304211570880.

The previous prime is 304320143107. The next prime is 304320143159. The reversal of 304320143123 is 321341023403.

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 304320143123 - 2⁴ = 304320143107 is a prime.

It is a super-2 number, since 2×304320143123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304320143092 and 304320143101.

It is not an unprimeable number, because it can be changed into a prime (304320143423) 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, 54281918 + ... + 54287523.

It is an arithmetic number, because the mean of its divisors is an integer number (76107178842).

Almost surely, 2^304320143123 is an apocalyptic number.

304320143123 is a deficient number, since it is larger than the sum of its proper divisors (108572245).

304320143123 is a wasteful number, since it uses less digits than its factorization.

304320143123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108572244.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 304320143123 its reverse (321341023403), we get a palindrome (625661166526).

The spelling of 304320143123 in words is "three hundred four billion, three hundred twenty million, one hundred forty-three thousand, one hundred twenty-three".