1200321133 has 8 divisors (see below), whose sum is σ = 1315162080. Its totient is φ = 1086433680.

The previous prime is 1200321127. The next prime is 1200321139. The reversal of 1200321133 is 3311230021.

It is an interprime number because it is at equal distance from previous prime (1200321127) and next prime (1200321139).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1200321133 - 2⁹ = 1200320621 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 (1200321139) 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 7 ways as a sum of consecutive naturals, for example, 235735 + ... + 240772.

It is an arithmetic number, because the mean of its divisors is an integer number (164395260).

Almost surely, 2^1200321133 is an apocalyptic number.

It is an amenable number.

1200321133 is a deficient number, since it is larger than the sum of its proper divisors (114840947).

1200321133 is a wasteful number, since it uses less digits than its factorization.

1200321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476747.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1200321133 is about 34645.6509969145. The cubic root of 1200321133 is about 1062.7533537097.

Adding to 1200321133 its reverse (3311230021), we get a palindrome (4511551154).

The spelling of 1200321133 in words is "one billion, two hundred million, three hundred twenty-one thousand, one hundred thirty-three".