42444110321 has 2 divisors, whose sum is σ = 42444110322. Its totient is φ = 42444110320.

The previous prime is 42444110299. The next prime is 42444110327. The reversal of 42444110321 is 12301144424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39586673296 + 2857437025 = 198964^2 + 53455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42444110321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42444110327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21222055160 + 21222055161.

It is an arithmetic number, because the mean of its divisors is an integer number (21222055161).

Almost surely, 2^42444110321 is an apocalyptic number.

It is an amenable number.

42444110321 is a deficient number, since it is larger than the sum of its proper divisors (1).

42444110321 is an equidigital number, since it uses as much as digits as its factorization.

42444110321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 42444110321 its reverse (12301144424), we get a palindrome (54745254745).

The spelling of 42444110321 in words is "forty-two billion, four hundred forty-four million, one hundred ten thousand, three hundred twenty-one".