1200321321211 has 4 divisors (see below), whose sum is σ = 1211539277592. Its totient is φ = 1189103364832.

The previous prime is 1200321321191. The next prime is 1200321321253. The reversal of 1200321321211 is 1121231230021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200321321211 - 2⁹ = 1200321320699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200321324211) 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, 5608978030 + ... + 5608978243.

It is an arithmetic number, because the mean of its divisors is an integer number (302884819398).

Almost surely, 2^{1200321321211} is an apocalyptic number.

1200321321211 is a deficient number, since it is larger than the sum of its proper divisors (11217956381).

1200321321211 is a wasteful number, since it uses less digits than its factorization.

1200321321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11217956380.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1200321321211 its reverse (1121231230021), we get a palindrome (2321552551232).

The spelling of 1200321321211 in words is "one trillion, two hundred billion, three hundred twenty-one million, three hundred twenty-one thousand, two hundred eleven".