1321104402404 has 24 divisors (see below), whose sum is σ = 2317416689280. Its totient is φ = 658985632704.

The previous prime is 1321104402379. The next prime is 1321104402421. The reversal of 1321104402404 is 4042044011231.

It is a super-3 number, since 3×1321104402404³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22909832 + ... + 22967424.

It is an arithmetic number, because the mean of its divisors is an integer number (96559028720).

Almost surely, 2^{1321104402404} is an apocalyptic number.

It is an amenable number.

1321104402404 is a deficient number, since it is larger than the sum of its proper divisors (996312286876).

1321104402404 is a wasteful number, since it uses less digits than its factorization.

1321104402404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71099 (or 71097 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1321104402404 its reverse (4042044011231), we get a palindrome (5363148413635).

The spelling of 1321104402404 in words is "one trillion, three hundred twenty-one billion, one hundred four million, four hundred two thousand, four hundred four".