42243332413 has 2 divisors, whose sum is σ = 42243332414. Its totient is φ = 42243332412.

The previous prime is 42243332399. The next prime is 42243332449. The reversal of 42243332413 is 31423334224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39625679844 + 2617652569 = 199062^2 + 51163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42243332413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42243632413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121666206 + 21121666207.

It is an arithmetic number, because the mean of its divisors is an integer number (21121666207).

Almost surely, 2^42243332413 is an apocalyptic number.

It is an amenable number.

42243332413 is a deficient number, since it is larger than the sum of its proper divisors (1).

42243332413 is an equidigital number, since it uses as much as digits as its factorization.

42243332413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 31.

Adding to 42243332413 its reverse (31423334224), we get a palindrome (73666666637).

The spelling of 42243332413 in words is "forty-two billion, two hundred forty-three million, three hundred thirty-two thousand, four hundred thirteen".