18316224323 has 4 divisors (see below), whose sum is σ = 18378737328. Its totient is φ = 18253711320.

The previous prime is 18316224319. The next prime is 18316224331. The reversal of 18316224323 is 32342261381.

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 18316224323 - 2² = 18316224319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18316224343) 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, 31256063 + ... + 31256648.

It is an arithmetic number, because the mean of its divisors is an integer number (4594684332).

Almost surely, 2^18316224323 is an apocalyptic number.

18316224323 is a deficient number, since it is larger than the sum of its proper divisors (62513005).

18316224323 is an equidigital number, since it uses as much as digits as its factorization.

18316224323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62513004.

The product of its digits is 41472, while the sum is 35.

The spelling of 18316224323 in words is "eighteen billion, three hundred sixteen million, two hundred twenty-four thousand, three hundred twenty-three".