42411211309 has 2 divisors, whose sum is σ = 42411211310. Its totient is φ = 42411211308.

The previous prime is 42411211303. The next prime is 42411211319. The reversal of 42411211309 is 90311211424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42351582025 + 59629284 = 205795^2 + 7722^2 .

It is a cyclic number.

It is not a de Polignac number, because 42411211309 - 2³ = 42411211301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42411211301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21205605654 + 21205605655.

It is an arithmetic number, because the mean of its divisors is an integer number (21205605655).

Almost surely, 2^42411211309 is an apocalyptic number.

It is an amenable number.

42411211309 is a deficient number, since it is larger than the sum of its proper divisors (1).

42411211309 is an equidigital number, since it uses as much as digits as its factorization.

42411211309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 42411211309 in words is "forty-two billion, four hundred eleven million, two hundred eleven thousand, three hundred nine".