42042113233 has 2 divisors, whose sum is σ = 42042113234. Its totient is φ = 42042113232.

The previous prime is 42042113221. The next prime is 42042113237. The reversal of 42042113233 is 33231124024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40629255489 + 1412857744 = 201567^2 + 37588^2 .

It is a cyclic number.

It is not a de Polignac number, because 42042113233 - 2¹⁷ = 42041982161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42042113198 and 42042113207.

It is not a weakly prime, because it can be changed into another prime (42042113237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21021056616 + 21021056617.

It is an arithmetic number, because the mean of its divisors is an integer number (21021056617).

Almost surely, 2^42042113233 is an apocalyptic number.

It is an amenable number.

42042113233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42042113233 is an equidigital number, since it uses as much as digits as its factorization.

42042113233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 42042113233 its reverse (33231124024), we get a palindrome (75273237257).

The spelling of 42042113233 in words is "forty-two billion, forty-two million, one hundred thirteen thousand, two hundred thirty-three".