1200404313 has 16 divisors (see below), whose sum is σ = 1803427200. Its totient is φ = 788996880.

The previous prime is 1200404243. The next prime is 1200404329. The reversal of 1200404313 is 3134040021.

It is not a de Polignac number, because 1200404313 - 2¹² = 1200400217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200404113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311178 + ... + 315011.

It is an arithmetic number, because the mean of its divisors is an integer number (112714200).

Almost surely, 2^1200404313 is an apocalyptic number.

It is an amenable number.

1200404313 is a deficient number, since it is larger than the sum of its proper divisors (603022887).

1200404313 is an equidigital number, since it uses as much as digits as its factorization.

1200404313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626269 (or 626263 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1200404313 is about 34646.8514153884. The cubic root of 1200404313 is about 1062.7779020798. Note that the first 3 decimals are identical.

Adding to 1200404313 its reverse (3134040021), we get a palindrome (4334444334).

The spelling of 1200404313 in words is "one billion, two hundred million, four hundred four thousand, three hundred thirteen".