20302420069 has 2 divisors, whose sum is σ = 20302420070. Its totient is φ = 20302420068.

The previous prime is 20302420049. The next prime is 20302420081. The reversal of 20302420069 is 96002420302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19842103044 + 460317025 = 140862^2 + 21455^2 .

It is a cyclic number.

It is not a de Polignac number, because 20302420069 - 2²⁵ = 20268865637 is a prime.

It is a super-2 number, since 2×20302420069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302420049) 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, 10151210034 + 10151210035.

It is an arithmetic number, because the mean of its divisors is an integer number (10151210035).

Almost surely, 2^20302420069 is an apocalyptic number.

It is an amenable number.

20302420069 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302420069 is an equidigital number, since it uses as much as digits as its factorization.

20302420069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20302420069 in words is "twenty billion, three hundred two million, four hundred twenty thousand, sixty-nine".