4102144411921 has 2 divisors, whose sum is σ = 4102144411922. Its totient is φ = 4102144411920.

The previous prime is 4102144411919. The next prime is 4102144411961. The reversal of 4102144411921 is 1291144412014.

4102144411921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4070451511296 + 31692900625 = 2017536^2 + 178025^2 .

It is a cyclic number.

It is not a de Polignac number, because 4102144411921 - 2¹ = 4102144411919 is a prime.

Together with 4102144411919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4102144411961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2051072205960 + 2051072205961.

It is an arithmetic number, because the mean of its divisors is an integer number (2051072205961).

Almost surely, 2^{4102144411921} is an apocalyptic number.

It is an amenable number.

4102144411921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4102144411921 is an equidigital number, since it uses as much as digits as its factorization.

4102144411921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

Adding to 4102144411921 its reverse (1291144412014), we get a palindrome (5393288823935).

The spelling of 4102144411921 in words is "four trillion, one hundred two billion, one hundred forty-four million, four hundred eleven thousand, nine hundred twenty-one".