320030103221 has 2 divisors, whose sum is σ = 320030103222. Its totient is φ = 320030103220.

The previous prime is 320030103187. The next prime is 320030103223. The reversal of 320030103221 is 122301030023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316535638225 + 3494464996 = 562615^2 + 59114^2 .

It is a cyclic number.

It is not a de Polignac number, because 320030103221 - 2¹⁸ = 320029841077 is a prime.

Together with 320030103223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320030103221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320030103223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160015051610 + 160015051611.

It is an arithmetic number, because the mean of its divisors is an integer number (160015051611).

Almost surely, 2^320030103221 is an apocalyptic number.

It is an amenable number.

320030103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

320030103221 is an equidigital number, since it uses as much as digits as its factorization.

320030103221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 320030103221 its reverse (122301030023), we get a palindrome (442331133244).

The spelling of 320030103221 in words is "three hundred twenty billion, thirty million, one hundred three thousand, two hundred twenty-one".