1321033401104 has 40 divisors (see below), whose sum is σ = 2601660715200. Its totient is φ = 649638748800.

The previous prime is 1321033401101. The next prime is 1321033401119. The reversal of 1321033401104 is 4011043301231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321033401104.

It is not an unprimeable number, because it can be changed into a prime (1321033401101) 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, 14887589 + ... + 14976059.

It is an arithmetic number, because the mean of its divisors is an integer number (65041517880).

Almost surely, 2^{1321033401104} is an apocalyptic number.

It is an amenable number.

1321033401104 is a deficient number, since it is larger than the sum of its proper divisors (1280627314096).

1321033401104 is a wasteful number, since it uses less digits than its factorization.

1321033401104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103839 (or 103833 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1321033401104 its reverse (4011043301231), we get a palindrome (5332076702335).

The spelling of 1321033401104 in words is "one trillion, three hundred twenty-one billion, thirty-three million, four hundred one thousand, one hundred four".