1121204140044 has 24 divisors (see below), whose sum is σ = 2620554718320. Its totient is φ = 373104466944.

The previous prime is 1121204140039. The next prime is 1121204140057. The reversal of 1121204140044 is 4400414021211.

It is a junction number, because it is equal to n+sod(n) for n = 1121204139996 and 1121204140023.

It is an unprimeable number.

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, 78773389 + ... + 78787620.

It is an arithmetic number, because the mean of its divisors is an integer number (109189779930).

Almost surely, 2^{1121204140044} is an apocalyptic number.

It is an amenable number.

1121204140044 is an abundant number, since it is smaller than the sum of its proper divisors (1499350578276).

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

1121204140044 is a wasteful number, since it uses less digits than its factorization.

1121204140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157561609 (or 157561607 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 1121204140044 its reverse (4400414021211), we get a palindrome (5521618161255).

The spelling of 1121204140044 in words is "one trillion, one hundred twenty-one billion, two hundred four million, one hundred forty thousand, forty-four".