305012423 has 4 divisors (see below), whose sum is σ = 313256040. Its totient is φ = 296768808.

The previous prime is 305012413. The next prime is 305012429. The reversal of 305012423 is 324210503.

It is a happy number.

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 305012423 - 2¹⁴ = 304996039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305012395 and 305012404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305012429) 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, 4121753 + ... + 4121826.

It is an arithmetic number, because the mean of its divisors is an integer number (78314010).

Almost surely, 2^305012423 is an apocalyptic number.

305012423 is a deficient number, since it is larger than the sum of its proper divisors (8243617).

305012423 is an equidigital number, since it uses as much as digits as its factorization.

305012423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243616.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 305012423 is about 17464.6048624067. The cubic root of 305012423 is about 673.1406887426.

Adding to 305012423 its reverse (324210503), we get a palindrome (629222926).

The spelling of 305012423 in words is "three hundred five million, twelve thousand, four hundred twenty-three".