423443141344393 has 2 divisors, whose sum is σ = 423443141344394. Its totient is φ = 423443141344392.

The previous prime is 423443141344367. The next prime is 423443141344427. The reversal of 423443141344393 is 393443141344324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420225523356409 + 3217617987984 = 20499403^2 + 1793772^2 .

It is a cyclic number.

It is not a de Polignac number, because 423443141344393 - 2⁵ = 423443141344361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423443141344393.

It is not a weakly prime, because it can be changed into another prime (423443141342393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211721570672196 + 211721570672197.

It is an arithmetic number, because the mean of its divisors is an integer number (211721570672197).

Almost surely, 2^{423443141344393} is an apocalyptic number.

It is an amenable number.

423443141344393 is a deficient number, since it is larger than the sum of its proper divisors (1).

423443141344393 is an equidigital number, since it uses as much as digits as its factorization.

423443141344393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17915904, while the sum is 52.

The spelling of 423443141344393 in words is "four hundred twenty-three trillion, four hundred forty-three billion, one hundred forty-one million, three hundred forty-four thousand, three hundred ninety-three".