320130222991 has 2 divisors, whose sum is σ = 320130222992. Its totient is φ = 320130222990.

The previous prime is 320130222989. The next prime is 320130223009. The reversal of 320130222991 is 199222031023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320130222991 - 2¹ = 320130222989 is a prime.

Together with 320130222989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320130222091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160065111495 + 160065111496.

It is an arithmetic number, because the mean of its divisors is an integer number (160065111496).

Almost surely, 2^320130222991 is an apocalyptic number.

320130222991 is a deficient number, since it is larger than the sum of its proper divisors (1).

320130222991 is an equidigital number, since it uses as much as digits as its factorization.

320130222991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 320130222991 in words is "three hundred twenty billion, one hundred thirty million, two hundred twenty-two thousand, nine hundred ninety-one".