1200304123 has 2 divisors, whose sum is σ = 1200304124. Its totient is φ = 1200304122.

The previous prime is 1200304111. The next prime is 1200304163. The reversal of 1200304123 is 3214030021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200304123 - 2²⁵ = 1166749691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200304097 and 1200304106.

It is not a weakly prime, because it can be changed into another prime (1200304103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600152061 + 600152062.

It is an arithmetic number, because the mean of its divisors is an integer number (600152062).

Almost surely, 2^1200304123 is an apocalyptic number.

1200304123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200304123 is an equidigital number, since it uses as much as digits as its factorization.

1200304123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1200304123 is about 34645.4055106878. The cubic root of 1200304123 is about 1062.7483335199.

Adding to 1200304123 its reverse (3214030021), we get a palindrome (4414334144).

The spelling of 1200304123 in words is "one billion, two hundred million, three hundred four thousand, one hundred twenty-three".