42042423611 has 2 divisors, whose sum is σ = 42042423612. Its totient is φ = 42042423610.

The previous prime is 42042423593. The next prime is 42042423617. The reversal of 42042423611 is 11632424024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42042423611 is a prime.

It is not a weakly prime, because it can be changed into another prime (42042423617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21021211805 + 21021211806.

It is an arithmetic number, because the mean of its divisors is an integer number (21021211806).

Almost surely, 2^42042423611 is an apocalyptic number.

42042423611 is a deficient number, since it is larger than the sum of its proper divisors (1).

42042423611 is an equidigital number, since it uses as much as digits as its factorization.

42042423611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 42042423611 its reverse (11632424024), we get a palindrome (53674847635).

The spelling of 42042423611 in words is "forty-two billion, forty-two million, four hundred twenty-three thousand, six hundred eleven".