20020353469 has 2 divisors, whose sum is σ = 20020353470. Its totient is φ = 20020353468.

The previous prime is 20020353361. The next prime is 20020353499. The reversal of 20020353469 is 96435302002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15119653444 + 4900700025 = 122962^2 + 70005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020353469 is a prime.

It is a super-2 number, since 2×20020353469² (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 (20020353499) 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, 10010176734 + 10010176735.

It is an arithmetic number, because the mean of its divisors is an integer number (10010176735).

Almost surely, 2^20020353469 is an apocalyptic number.

It is an amenable number.

20020353469 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020353469 is an equidigital number, since it uses as much as digits as its factorization.

20020353469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 20020353469 in words is "twenty billion, twenty million, three hundred fifty-three thousand, four hundred sixty-nine".