20317247215223 has 8 divisors (see below), whose sum is σ = 23220335771040. Its totient is φ = 17414314826400.

The previous prime is 20317247215201. The next prime is 20317247215297. The reversal of 20317247215223 is 32251274271302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20317247215223 - 2²⁸ = 20316978779767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20317247218223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38762828 + ... + 39283473.

It is an arithmetic number, because the mean of its divisors is an integer number (2902541971380).

Almost surely, 2^{20317247215223} is an apocalyptic number.

20317247215223 is a deficient number, since it is larger than the sum of its proper divisors (2903088555817).

20317247215223 is an equidigital number, since it uses as much as digits as its factorization.

20317247215223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78083497.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 20317247215223 in words is "twenty trillion, three hundred seventeen billion, two hundred forty-seven million, two hundred fifteen thousand, two hundred twenty-three".