32320221317 has 2 divisors, whose sum is σ = 32320221318. Its totient is φ = 32320221316.

The previous prime is 32320221293. The next prime is 32320221337. The reversal of 32320221317 is 71312202323.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31815500161 + 504721156 = 178369^2 + 22466^2 .

It is an emirp because it is prime and its reverse (71312202323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32320221317 - 2¹⁶ = 32320155781 is a prime.

It is a super-2 number, since 2×32320221317² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32320221337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16160110658 + 16160110659.

It is an arithmetic number, because the mean of its divisors is an integer number (16160110659).

Almost surely, 2^32320221317 is an apocalyptic number.

It is an amenable number.

32320221317 is a deficient number, since it is larger than the sum of its proper divisors (1).

32320221317 is an equidigital number, since it uses as much as digits as its factorization.

32320221317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The spelling of 32320221317 in words is "thirty-two billion, three hundred twenty million, two hundred twenty-one thousand, three hundred seventeen".