13217870223 has 20 divisors (see below), whose sum is σ = 19750336320. Its totient is φ = 8809627392.

The previous prime is 13217870173. The next prime is 13217870251. The reversal of 13217870223 is 32207871231.

It is not a de Polignac number, because 13217870223 - 2¹² = 13217866127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13217870723) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 328386 + ... + 366432.

It is an arithmetic number, because the mean of its divisors is an integer number (987516816).

Almost surely, 2^13217870223 is an apocalyptic number.

13217870223 is a deficient number, since it is larger than the sum of its proper divisors (6532466097).

13217870223 is an equidigital number, since it uses as much as digits as its factorization.

13217870223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42348 (or 42339 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 13217870223 in words is "thirteen billion, two hundred seventeen million, eight hundred seventy thousand, two hundred twenty-three".