305305404406223 has 4 divisors (see below), whose sum is σ = 328790435514408. Its totient is φ = 281820373298040.

The previous prime is 305305404406201. The next prime is 305305404406231. The reversal of 305305404406223 is 322604404503503.

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 305305404406223 - 2¹⁸ = 305305404144079 is a prime.

It is a super-2 number, since 2×305305404406223² (a number of 30 digits) contains 22 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 (305305404406243) 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, 11742515554073 + ... + 11742515554098.

It is an arithmetic number, because the mean of its divisors is an integer number (82197608878602).

Almost surely, 2^{305305404406223} is an apocalyptic number.

305305404406223 is a deficient number, since it is larger than the sum of its proper divisors (23485031108185).

305305404406223 is a wasteful number, since it uses less digits than its factorization.

305305404406223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23485031108184.

The product of its (nonzero) digits is 1036800, while the sum is 41.

Adding to 305305404406223 its reverse (322604404503503), we get a palindrome (627909808909726).

The spelling of 305305404406223 in words is "three hundred five trillion, three hundred five billion, four hundred four million, four hundred six thousand, two hundred twenty-three".