20004310573309 has 2 divisors, whose sum is σ = 20004310573310. Its totient is φ = 20004310573308.

The previous prime is 20004310573243. The next prime is 20004310573321. The reversal of 20004310573309 is 90337501340002.

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., 19597709224900 + 406601348409 = 4426930^2 + 637653^2 .

It is a cyclic number.

It is not a de Polignac number, because 20004310573309 - 2¹³ = 20004310565117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20004310576309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002155286654 + 10002155286655.

It is an arithmetic number, because the mean of its divisors is an integer number (10002155286655).

Almost surely, 2^{20004310573309} is an apocalyptic number.

It is an amenable number.

20004310573309 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004310573309 is an equidigital number, since it uses as much as digits as its factorization.

20004310573309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 20004310573309 in words is "twenty trillion, four billion, three hundred ten million, five hundred seventy-three thousand, three hundred nine".