304400203223 has 4 divisors (see below), whose sum is σ = 304653660048. Its totient is φ = 304146746400.

The previous prime is 304400203201. The next prime is 304400203271. The reversal of 304400203223 is 322302004403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322302004403 = 179 ⋅1800569857.

It is a cyclic number.

It is not a de Polignac number, because 304400203223 - 2¹² = 304400199127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304400203273) 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, 126726611 + ... + 126729012.

It is an arithmetic number, because the mean of its divisors is an integer number (76163415012).

Almost surely, 2^304400203223 is an apocalyptic number.

304400203223 is a deficient number, since it is larger than the sum of its proper divisors (253456825).

304400203223 is a wasteful number, since it uses less digits than its factorization.

304400203223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253456824.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 304400203223 its reverse (322302004403), we get a palindrome (626702207626).

The spelling of 304400203223 in words is "three hundred four billion, four hundred million, two hundred three thousand, two hundred twenty-three".