10440421139 has 2 divisors, whose sum is σ = 10440421140. Its totient is φ = 10440421138.

The previous prime is 10440421129. The next prime is 10440421141. The reversal of 10440421139 is 93112404401.

10440421139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10440421139 - 2⁸ = 10440420883 is a prime.

Together with 10440421141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10440421129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5220210569 + 5220210570.

It is an arithmetic number, because the mean of its divisors is an integer number (5220210570).

Almost surely, 2^10440421139 is an apocalyptic number.

10440421139 is a deficient number, since it is larger than the sum of its proper divisors (1).

10440421139 is an equidigital number, since it uses as much as digits as its factorization.

10440421139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 10440421139 in words is "ten billion, four hundred forty million, four hundred twenty-one thousand, one hundred thirty-nine".