20308073369 has 2 divisors, whose sum is σ = 20308073370. Its totient is φ = 20308073368.

The previous prime is 20308073351. The next prime is 20308073393. The reversal of 20308073369 is 96337080302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14832073369 + 5476000000 = 121787^2 + 74000^2 .

It is a cyclic number.

It is not a de Polignac number, because 20308073369 - 2¹⁶ = 20308007833 is a prime.

It is a super-2 number, since 2×20308073369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20308073869) 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, 10154036684 + 10154036685.

It is an arithmetic number, because the mean of its divisors is an integer number (10154036685).

Almost surely, 2^20308073369 is an apocalyptic number.

It is an amenable number.

20308073369 is a deficient number, since it is larger than the sum of its proper divisors (1).

20308073369 is an equidigital number, since it uses as much as digits as its factorization.

20308073369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 20308073369 in words is "twenty billion, three hundred eight million, seventy-three thousand, three hundred sixty-nine".