13573216243 has 4 divisors (see below), whose sum is σ = 13594326088. Its totient is φ = 13552106400.

The previous prime is 13573216193. The next prime is 13573216249. The reversal of 13573216243 is 34261237531.

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 13573216243 - 2⁹ = 13573215731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13573216249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10553958 + ... + 10555243.

It is an arithmetic number, because the mean of its divisors is an integer number (3398581522).

Almost surely, 2^13573216243 is an apocalyptic number.

13573216243 is a deficient number, since it is larger than the sum of its proper divisors (21109845).

13573216243 is an equidigital number, since it uses as much as digits as its factorization.

13573216243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21109844.

The product of its digits is 90720, while the sum is 37.

The spelling of 13573216243 in words is "thirteen billion, five hundred seventy-three million, two hundred sixteen thousand, two hundred forty-three".