1121123044 has 18 divisors (see below), whose sum is σ = 2070664134. Its totient is φ = 531057600.

The previous prime is 1121123011. The next prime is 1121123057. The reversal of 1121123044 is 4403211211.

It can be written as a sum of positive squares in only one way, i.e., 1108090944 + 13032100 = 33288^2 + 3610^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 386757 + ... + 389644.

Almost surely, 2^1121123044 is an apocalyptic number.

It is an amenable number.

1121123044 is a deficient number, since it is larger than the sum of its proper divisors (949541090).

1121123044 is a wasteful number, since it uses less digits than its factorization.

1121123044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776443 (or 776422 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1121123044 is about 33483.1755363795. The cubic root of 1121123044 is about 1038.8458115219.

Adding to 1121123044 its reverse (4403211211), we get a palindrome (5524334255).

The spelling of 1121123044 in words is "one billion, one hundred twenty-one million, one hundred twenty-three thousand, forty-four".