320305121207 has 2 divisors, whose sum is σ = 320305121208. Its totient is φ = 320305121206.

The previous prime is 320305121173. The next prime is 320305121243. The reversal of 320305121207 is 702121503023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320305121207 - 2¹⁰ = 320305120183 is a prime.

It is a super-2 number, since 2×320305121207² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320305121407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160152560603 + 160152560604.

It is an arithmetic number, because the mean of its divisors is an integer number (160152560604).

Almost surely, 2^320305121207 is an apocalyptic number.

320305121207 is a deficient number, since it is larger than the sum of its proper divisors (1).

320305121207 is an equidigital number, since it uses as much as digits as its factorization.

320305121207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 320305121207 in words is "three hundred twenty billion, three hundred five million, one hundred twenty-one thousand, two hundred seven".