309922811069 has 2 divisors, whose sum is σ = 309922811070. Its totient is φ = 309922811068.

The previous prime is 309922811041. The next prime is 309922811087. The reversal of 309922811069 is 960118229903.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169307560900 + 140615250169 = 411470^2 + 374987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-309922811069 is a prime.

It is a super-2 number, since 2×309922811069² (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 (309922811089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154961405534 + 154961405535.

It is an arithmetic number, because the mean of its divisors is an integer number (154961405535).

Almost surely, 2^309922811069 is an apocalyptic number.

It is an amenable number.

309922811069 is a deficient number, since it is larger than the sum of its proper divisors (1).

309922811069 is an equidigital number, since it uses as much as digits as its factorization.

309922811069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 309922811069 in words is "three hundred nine billion, nine hundred twenty-two million, eight hundred eleven thousand, sixty-nine".