1000020423469 has 2 divisors, whose sum is σ = 1000020423470. Its totient is φ = 1000020423468.

The previous prime is 1000020423383. The next prime is 1000020423499. The reversal of 1000020423469 is 9643240200001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 729251097444 + 270769326025 = 853962^2 + 520355^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000020423469 - 2⁹ = 1000020422957 is a prime.

It is a super-2 number, since 2×1000020423469² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1000020423469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000020423499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010211734 + 500010211735.

It is an arithmetic number, because the mean of its divisors is an integer number (500010211735).

Almost surely, 2^{1000020423469} is an apocalyptic number.

It is an amenable number.

1000020423469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000020423469 is an equidigital number, since it uses as much as digits as its factorization.

1000020423469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 1000020423469 in words is "one trillion, twenty million, four hundred twenty-three thousand, four hundred sixty-nine".