305223023 has 4 divisors (see below), whose sum is σ = 348826320. Its totient is φ = 261619728.

The previous prime is 305223007. The next prime is 305223031. The reversal of 305223023 is 320322503.

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 305223023 - 2⁴ = 305223007 is a prime.

It is a super-2 number, since 2×305223023² = 186322187538517058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305222986 and 305223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305228023) 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, 21801638 + ... + 21801651.

It is an arithmetic number, because the mean of its divisors is an integer number (87206580).

Almost surely, 2^305223023 is an apocalyptic number.

305223023 is a deficient number, since it is larger than the sum of its proper divisors (43603297).

305223023 is an equidigital number, since it uses as much as digits as its factorization.

305223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43603296.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 305223023 is about 17470.6331596768. The cubic root of 305223023 is about 673.2955794983.

Adding to 305223023 its reverse (320322503), we get a palindrome (625545526).

The spelling of 305223023 in words is "three hundred five million, two hundred twenty-three thousand, twenty-three".