1200343423 has 2 divisors, whose sum is σ = 1200343424. Its totient is φ = 1200343422.

The previous prime is 1200343393. The next prime is 1200343433. The reversal of 1200343423 is 3243430021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200343423 - 2¹³ = 1200335231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200343394 and 1200343403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200343433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600171711 + 600171712.

It is an arithmetic number, because the mean of its divisors is an integer number (600171712).

Almost surely, 2^1200343423 is an apocalyptic number.

1200343423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200343423 is an equidigital number, since it uses as much as digits as its factorization.

1200343423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1200343423 is about 34645.9726808182. The cubic root of 1200343423 is about 1062.7599321231.

Adding to 1200343423 its reverse (3243430021), we get a palindrome (4443773444).

The spelling of 1200343423 in words is "one billion, two hundred million, three hundred forty-three thousand, four hundred twenty-three".