42444045101 has 2 divisors, whose sum is σ = 42444045102. Its totient is φ = 42444045100.

The previous prime is 42444045097. The next prime is 42444045107. The reversal of 42444045101 is 10154044424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22521004900 + 19923040201 = 150070^2 + 141149^2 .

It is a cyclic number.

It is not a de Polignac number, because 42444045101 - 2² = 42444045097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42444045107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21222022550 + 21222022551.

It is an arithmetic number, because the mean of its divisors is an integer number (21222022551).

Almost surely, 2^42444045101 is an apocalyptic number.

It is an amenable number.

42444045101 is a deficient number, since it is larger than the sum of its proper divisors (1).

42444045101 is an equidigital number, since it uses as much as digits as its factorization.

42444045101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 42444045101 its reverse (10154044424), we get a palindrome (52598089525).

The spelling of 42444045101 in words is "forty-two billion, four hundred forty-four million, forty-five thousand, one hundred one".