4043104121389 has 2 divisors, whose sum is σ = 4043104121390. Its totient is φ = 4043104121388.

The previous prime is 4043104121387. The next prime is 4043104121447. The reversal of 4043104121389 is 9831214013404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3804383933289 + 238720188100 = 1950483^2 + 488590^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043104121389 - 2¹ = 4043104121387 is a prime.

Together with 4043104121387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4043104121387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021552060694 + 2021552060695.

It is an arithmetic number, because the mean of its divisors is an integer number (2021552060695).

Almost surely, 2^{4043104121389} is an apocalyptic number.

It is an amenable number.

4043104121389 is a deficient number, since it is larger than the sum of its proper divisors (1).

4043104121389 is an equidigital number, since it uses as much as digits as its factorization.

4043104121389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 4043104121389 in words is "four trillion, forty-three billion, one hundred four million, one hundred twenty-one thousand, three hundred eighty-nine".