20232317221 has 8 divisors (see below), whose sum is σ = 20449919840. Its totient is φ = 20015744112.

The previous prime is 20232317207. The next prime is 20232317251. The reversal of 20232317221 is 12271323202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20232317221 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 (20232317251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217830 + ... + 296503.

It is an arithmetic number, because the mean of its divisors is an integer number (2556239980).

Almost surely, 2^20232317221 is an apocalyptic number.

It is an amenable number.

20232317221 is a deficient number, since it is larger than the sum of its proper divisors (217602619).

20232317221 is a wasteful number, since it uses less digits than its factorization.

20232317221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514755.

The product of its (nonzero) digits is 2016, while the sum is 25.

The spelling of 20232317221 in words is "twenty billion, two hundred thirty-two million, three hundred seventeen thousand, two hundred twenty-one".