42322144309 has 2 divisors, whose sum is σ = 42322144310. Its totient is φ = 42322144308.

The previous prime is 42322144303. The next prime is 42322144321. The reversal of 42322144309 is 90344122324.

42322144309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42262314084 + 59830225 = 205578^2 + 7735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42322144309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42322144303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21161072154 + 21161072155.

It is an arithmetic number, because the mean of its divisors is an integer number (21161072155).

Almost surely, 2^42322144309 is an apocalyptic number.

It is an amenable number.

42322144309 is a deficient number, since it is larger than the sum of its proper divisors (1).

42322144309 is an equidigital number, since it uses as much as digits as its factorization.

42322144309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 42322144309 in words is "forty-two billion, three hundred twenty-two million, one hundred forty-four thousand, three hundred nine".