1204345223 has 4 divisors (see below), whose sum is σ = 1211734008. Its totient is φ = 1196956440.

The previous prime is 1204345211. The next prime is 1204345237. The reversal of 1204345223 is 3225434021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204345223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204345192 and 1204345201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204345823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3694148 + ... + 3694473.

It is an arithmetic number, because the mean of its divisors is an integer number (302933502).

Almost surely, 2^1204345223 is an apocalyptic number.

1204345223 is a deficient number, since it is larger than the sum of its proper divisors (7388785).

1204345223 is an equidigital number, since it uses as much as digits as its factorization.

1204345223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7388784.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1204345223 is about 34703.6773699849. The cubic root of 1204345223 is about 1063.9396598222.

Adding to 1204345223 its reverse (3225434021), we get a palindrome (4429779244).

The spelling of 1204345223 in words is "one billion, two hundred four million, three hundred forty-five thousand, two hundred twenty-three".