320140022309 has 2 divisors, whose sum is σ = 320140022310. Its totient is φ = 320140022308.

The previous prime is 320140022273. The next prime is 320140022399. The reversal of 320140022309 is 903220041023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299323881025 + 20816141284 = 547105^2 + 144278^2 .

It is an emirp because it is prime and its reverse (903220041023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320140022309 - 2²⁰ = 320138973733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320140022399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160070011154 + 160070011155.

It is an arithmetic number, because the mean of its divisors is an integer number (160070011155).

Almost surely, 2^320140022309 is an apocalyptic number.

It is an amenable number.

320140022309 is a deficient number, since it is larger than the sum of its proper divisors (1).

320140022309 is an equidigital number, since it uses as much as digits as its factorization.

320140022309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 320140022309 in words is "three hundred twenty billion, one hundred forty million, twenty-two thousand, three hundred nine".