1200233213 has 4 divisors (see below), whose sum is σ = 1200924348. Its totient is φ = 1199542080.

The previous prime is 1200233207. The next prime is 1200233227. The reversal of 1200233213 is 3123320021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3123320021 = 10739 ⋅290839.

It can be written as a sum of positive squares in 2 ways, for example, as 408767524 + 791465689 = 20218^2 + 28133^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200233213 - 2⁶ = 1200233149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200233191 and 1200233200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200233413) 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 3 ways as a sum of consecutive naturals, for example, 342956 + ... + 346437.

It is an arithmetic number, because the mean of its divisors is an integer number (300231087).

Almost surely, 2^1200233213 is an apocalyptic number.

It is an amenable number.

1200233213 is a deficient number, since it is larger than the sum of its proper divisors (691135).

1200233213 is an equidigital number, since it uses as much as digits as its factorization.

1200233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691134.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1200233213 is about 34644.3821275542. The cubic root of 1200233213 is about 1062.7274052215.

Adding to 1200233213 its reverse (3123320021), we get a palindrome (4323553234).

The spelling of 1200233213 in words is "one billion, two hundred million, two hundred thirty-three thousand, two hundred thirteen".