20706203339 has 2 divisors, whose sum is σ = 20706203340. Its totient is φ = 20706203338.

The previous prime is 20706203291. The next prime is 20706203347. The reversal of 20706203339 is 93330260702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20706203339 - 2¹² = 20706199243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20706203299 and 20706203308.

It is not a weakly prime, because it can be changed into another prime (20706203239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10353101669 + 10353101670.

It is an arithmetic number, because the mean of its divisors is an integer number (10353101670).

Almost surely, 2^20706203339 is an apocalyptic number.

20706203339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20706203339 is an equidigital number, since it uses as much as digits as its factorization.

20706203339 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 35.

The spelling of 20706203339 in words is "twenty billion, seven hundred six million, two hundred three thousand, three hundred thirty-nine".