1121321203104 has 24 divisors (see below), whose sum is σ = 2943468158400. Its totient is φ = 373773734336.

The previous prime is 1121321203063. The next prime is 1121321203109. The reversal of 1121321203104 is 4013021231211.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1121321203104² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121321203109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5840214504 + ... + 5840214695.

It is an arithmetic number, because the mean of its divisors is an integer number (122644506600).

Almost surely, 2^{1121321203104} is an apocalyptic number.

It is an amenable number.

1121321203104 is an abundant number, since it is smaller than the sum of its proper divisors (1822146955296).

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

1121321203104 is a wasteful number, since it uses less digits than its factorization.

1121321203104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11680429212 (or 11680429204 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1121321203104 its reverse (4013021231211), we get a palindrome (5134342434315).

The spelling of 1121321203104 in words is "one trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred three thousand, one hundred four".