1200304213 has 4 divisors (see below), whose sum is σ = 1200597388. Its totient is φ = 1200011040.

The previous prime is 1200304199. The next prime is 1200304219. The reversal of 1200304213 is 3124030021.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 128527569 + 1071776644 = 11337^2 + 32738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200304213 - 2⁵ = 1200304181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200304219) 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, 140358 + ... + 148663.

It is an arithmetic number, because the mean of its divisors is an integer number (300149347).

Almost surely, 2^1200304213 is an apocalyptic number.

It is an amenable number.

1200304213 is a deficient number, since it is larger than the sum of its proper divisors (293175).

1200304213 is an equidigital number, since it uses as much as digits as its factorization.

1200304213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293174.

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

The square root of 1200304213 is about 34645.4068095614. The cubic root of 1200304213 is about 1062.7483600819.

Adding to 1200304213 its reverse (3124030021), we get a palindrome (4324334234).

The spelling of 1200304213 in words is "one billion, two hundred million, three hundred four thousand, two hundred thirteen".