20103440339 has 2 divisors, whose sum is σ = 20103440340. Its totient is φ = 20103440338.

The previous prime is 20103440327. The next prime is 20103440341. The reversal of 20103440339 is 93304430102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20103440339 - 2⁴ = 20103440323 is a prime.

Together with 20103440341, 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 (20103440359) 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, 10051720169 + 10051720170.

It is an arithmetic number, because the mean of its divisors is an integer number (10051720170).

Almost surely, 2^20103440339 is an apocalyptic number.

20103440339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103440339 is an equidigital number, since it uses as much as digits as its factorization.

20103440339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 20103440339 in words is "twenty billion, one hundred three million, four hundred forty thousand, three hundred thirty-nine".