423052405223309 has 2 divisors, whose sum is σ = 423052405223310. Its totient is φ = 423052405223308.

The previous prime is 423052405223267. The next prime is 423052405223333. The reversal of 423052405223309 is 903322504250324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420301046550025 + 2751358673284 = 20501245^2 + 1658722^2 .

It is a cyclic number.

It is not a de Polignac number, because 423052405223309 - 2⁴⁰ = 421952893595533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423052405223309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423052405229309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211526202611654 + 211526202611655.

It is an arithmetic number, because the mean of its divisors is an integer number (211526202611655).

Almost surely, 2^{423052405223309} is an apocalyptic number.

It is an amenable number.

423052405223309 is a deficient number, since it is larger than the sum of its proper divisors (1).

423052405223309 is an equidigital number, since it uses as much as digits as its factorization.

423052405223309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 423052405223309 in words is "four hundred twenty-three trillion, fifty-two billion, four hundred five million, two hundred twenty-three thousand, three hundred nine".