1121204423144 has 32 divisors (see below), whose sum is σ = 2273443200000. Its totient is φ = 515313769152.

The previous prime is 1121204423113. The next prime is 1121204423153. The reversal of 1121204423144 is 4413244021211.

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, 22529144 + ... + 22578855.

It is an arithmetic number, because the mean of its divisors is an integer number (71045100000).

Almost surely, 2^{1121204423144} is an apocalyptic number.

It is an amenable number.

1121204423144 is an abundant number, since it is smaller than the sum of its proper divisors (1152238776856).

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

1121204423144 is a wasteful number, since it uses less digits than its factorization.

1121204423144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45108257 (or 45108253 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1121204423144 its reverse (4413244021211), we get a palindrome (5534448444355).

The spelling of 1121204423144 in words is "one trillion, one hundred twenty-one billion, two hundred four million, four hundred twenty-three thousand, one hundred forty-four".