1200321100204 has 24 divisors (see below), whose sum is σ = 2122362336528. Its totient is φ = 593932707840.

The previous prime is 1200321100073. The next prime is 1200321100207. The reversal of 1200321100204 is 4020011230021.

It is a super-3 number, since 3×1200321100204³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200321100207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6033684 + ... + 6229444.

It is an arithmetic number, because the mean of its divisors is an integer number (88431764022).

Almost surely, 2^{1200321100204} is an apocalyptic number.

It is an amenable number.

1200321100204 is a deficient number, since it is larger than the sum of its proper divisors (922041236324).

1200321100204 is a wasteful number, since it uses less digits than its factorization.

1200321100204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211665 (or 211663 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1200321100204 its reverse (4020011230021), we get a palindrome (5220332330225).

The spelling of 1200321100204 in words is "one trillion, two hundred billion, three hundred twenty-one million, one hundred thousand, two hundred four".