320330999999 has 2 divisors, whose sum is σ = 320331000000. Its totient is φ = 320330999998.

The previous prime is 320330999993. The next prime is 320331000013. The reversal of 320330999999 is 999999033023.

It is a weak prime.

It is an emirp because it is prime and its reverse (999999033023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320330999999 - 2¹⁶ = 320330934463 is a prime.

It is a super-2 number, since 2×320330999999² (a number of 24 digits) contains 22 as substring.

320330999999 is a modest number, since divided by 999999 gives 320330 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320330999993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160165499999 + 160165500000.

It is an arithmetic number, because the mean of its divisors is an integer number (160165500000).

Almost surely, 2^320330999999 is an apocalyptic number.

320330999999 is a deficient number, since it is larger than the sum of its proper divisors (1).

320330999999 is an equidigital number, since it uses as much as digits as its factorization.

320330999999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28697814, while the sum is 65.

The spelling of 320330999999 in words is "three hundred twenty billion, three hundred thirty million, nine hundred ninety-nine thousand, nine hundred ninety-nine".