42004220311 has 2 divisors, whose sum is σ = 42004220312. Its totient is φ = 42004220310.

The previous prime is 42004220309. The next prime is 42004220351. The reversal of 42004220311 is 11302240024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42004220311 - 2¹ = 42004220309 is a prime.

Together with 42004220309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42004220351) 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, 21002110155 + 21002110156.

It is an arithmetic number, because the mean of its divisors is an integer number (21002110156).

Almost surely, 2^42004220311 is an apocalyptic number.

42004220311 is a deficient number, since it is larger than the sum of its proper divisors (1).

42004220311 is an equidigital number, since it uses as much as digits as its factorization.

42004220311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 42004220311 its reverse (11302240024), we get a palindrome (53306460335).

The spelling of 42004220311 in words is "forty-two billion, four million, two hundred twenty thousand, three hundred eleven".