44030020121 has 2 divisors, whose sum is σ = 44030020122. Its totient is φ = 44030020120.

The previous prime is 44030020117. The next prime is 44030020163. The reversal of 44030020121 is 12102003044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44016040000 + 13980121 = 209800^2 + 3739^2 .

It is a cyclic number.

It is not a de Polignac number, because 44030020121 - 2² = 44030020117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44030020121.

It is not a weakly prime, because it can be changed into another prime (44030020421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22015010060 + 22015010061.

It is an arithmetic number, because the mean of its divisors is an integer number (22015010061).

Almost surely, 2^44030020121 is an apocalyptic number.

It is an amenable number.

44030020121 is a deficient number, since it is larger than the sum of its proper divisors (1).

44030020121 is an equidigital number, since it uses as much as digits as its factorization.

44030020121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 44030020121 its reverse (12102003044), we get a palindrome (56132023165).

The spelling of 44030020121 in words is "forty-four billion, thirty million, twenty thousand, one hundred twenty-one".