42422311 has 2 divisors, whose sum is σ = 42422312. Its totient is φ = 42422310.

The previous prime is 42422297. The next prime is 42422339. The reversal of 42422311 is 11322424.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42422311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42422351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21211155 + 21211156.

It is an arithmetic number, because the mean of its divisors is an integer number (21211156).

Almost surely, 2^42422311 is an apocalyptic number.

42422311 is a deficient number, since it is larger than the sum of its proper divisors (1).

42422311 is an equidigital number, since it uses as much as digits as its factorization.

42422311 is an odious number, because the sum of its binary digits is odd.

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

The square root of 42422311 is about 6513.2412054215. The cubic root of 42422311 is about 348.7638323072.

Adding to 42422311 its reverse (11322424), we get a palindrome (53744735).

The spelling of 42422311 in words is "forty-two million, four hundred twenty-two thousand, three hundred eleven".