16923430303 has 4 divisors (see below), whose sum is σ = 18225232648. Its totient is φ = 15621627960.

The previous prime is 16923430301. The next prime is 16923430331. The reversal of 16923430303 is 30303432961.

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 16923430303 - 2¹ = 16923430301 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16923430301) 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, 650901153 + ... + 650901178.

It is an arithmetic number, because the mean of its divisors is an integer number (4556308162).

Almost surely, 2^16923430303 is an apocalyptic number.

16923430303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16923430303 is a deficient number, since it is larger than the sum of its proper divisors (1301802345).

16923430303 is a wasteful number, since it uses less digits than its factorization.

16923430303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301802344.

The product of its (nonzero) digits is 34992, while the sum is 34.

The spelling of 16923430303 in words is "sixteen billion, nine hundred twenty-three million, four hundred thirty thousand, three hundred three".