1121040044 has 24 divisors (see below), whose sum is σ = 2079086688. Its totient is φ = 527074560.

The previous prime is 1121040043. The next prime is 1121040059. The reversal of 1121040044 is 4400401211.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1121040043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75689 + ... + 89279.

It is an arithmetic number, because the mean of its divisors is an integer number (86628612).

Almost surely, 2^1121040044 is an apocalyptic number.

It is an amenable number.

1121040044 is a deficient number, since it is larger than the sum of its proper divisors (958046644).

1121040044 is a wasteful number, since it uses less digits than its factorization.

1121040044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14825 (or 14823 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1121040044 is about 33481.9360849996. The cubic root of 1121040044 is about 1038.8201746302.

Adding to 1121040044 its reverse (4400401211), we get a palindrome (5521441255).

The spelling of 1121040044 in words is "one billion, one hundred twenty-one million, forty thousand, forty-four".