1321110104204 has 144 divisors (see below), whose sum is σ = 2726584158144. Its totient is φ = 558214778880.

The previous prime is 1321110104203. The next prime is 1321110104233. The reversal of 1321110104204 is 4024010111231.

It is not an unprimeable number, because it can be changed into a prime (1321110104203) 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 47 ways as a sum of consecutive naturals, for example, 534212312 + ... + 534214784.

Almost surely, 2^{1321110104204} is an apocalyptic number.

It is an amenable number.

1321110104204 is an abundant number, since it is smaller than the sum of its proper divisors (1405474053940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321110104204 is a wasteful number, since it uses less digits than its factorization.

1321110104204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856 (or 3843 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1321110104204 its reverse (4024010111231), we get a palindrome (5345120215435).

The spelling of 1321110104204 in words is "one trillion, three hundred twenty-one billion, one hundred ten million, one hundred four thousand, two hundred four".