10202020069 has 2 divisors, whose sum is σ = 10202020070. Its totient is φ = 10202020068.

The previous prime is 10202020067. The next prime is 10202020099. The reversal of 10202020069 is 96002020201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5611957569 + 4590062500 = 74913^2 + 67750^2 .

It is a cyclic number.

It is not a de Polignac number, because 10202020069 - 2¹ = 10202020067 is a prime.

It is a super-2 number, since 2×10202020069² (a number of 21 digits) contains 22 as substring.

Together with 10202020067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10202020067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101010034 + 5101010035.

It is an arithmetic number, because the mean of its divisors is an integer number (5101010035).

Almost surely, 2^10202020069 is an apocalyptic number.

It is an amenable number.

10202020069 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202020069 is an equidigital number, since it uses as much as digits as its factorization.

10202020069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 10202020069 in words is "ten billion, two hundred two million, twenty thousand, sixty-nine".