42113333 has 2 divisors, whose sum is σ = 42113334. Its totient is φ = 42113332.

The previous prime is 42113317. The next prime is 42113341. The reversal of 42113333 is 33331124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23251684 + 18861649 = 4822^2 + 4343^2 .

It is a cyclic number.

It is not a de Polignac number, because 42113333 - 2⁴ = 42113317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42113933) 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, 21056666 + 21056667.

It is an arithmetic number, because the mean of its divisors is an integer number (21056667).

Almost surely, 2^42113333 is an apocalyptic number.

It is an amenable number.

42113333 is a deficient number, since it is larger than the sum of its proper divisors (1).

42113333 is an equidigital number, since it uses as much as digits as its factorization.

42113333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 20.

The square root of 42113333 is about 6489.4786385348. The cubic root of 42113333 is about 347.9150412456.

Adding to 42113333 its reverse (33331124), we get a palindrome (75444457).

The spelling of 42113333 in words is "forty-two million, one hundred thirteen thousand, three hundred thirty-three".