1017200126939 has 2 divisors, whose sum is σ = 1017200126940. Its totient is φ = 1017200126938.

The previous prime is 1017200126909. The next prime is 1017200126941. The reversal of 1017200126939 is 9396210027101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1017200126939 - 2²⁸ = 1016931691483 is a prime.

Together with 1017200126941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1017200126896 and 1017200126905.

It is not a weakly prime, because it can be changed into another prime (1017200126909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508600063469 + 508600063470.

It is an arithmetic number, because the mean of its divisors is an integer number (508600063470).

Almost surely, 2^{1017200126939} is an apocalyptic number.

1017200126939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1017200126939 is an equidigital number, since it uses as much as digits as its factorization.

1017200126939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 1017200126939 in words is "one trillion, seventeen billion, two hundred million, one hundred twenty-six thousand, nine hundred thirty-nine".