1121332144 has 20 divisors (see below), whose sum is σ = 2173307824. Its totient is φ = 560478528.

The previous prime is 1121332141. The next prime is 1121332153. The reversal of 1121332144 is 4412331211.

It is not an unprimeable number, because it can be changed into a prime (1121332141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46309 + ... + 66235.

Almost surely, 2^1121332144 is an apocalyptic number.

It is an amenable number.

1121332144 is a deficient number, since it is larger than the sum of its proper divisors (1051975680).

1121332144 is a wasteful number, since it uses less digits than its factorization.

1121332144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23452 (or 23446 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1121332144 is about 33486.2978544957. The cubic root of 1121332144 is about 1038.9103923477.

Adding to 1121332144 its reverse (4412331211), we get a palindrome (5533663355).

The spelling of 1121332144 in words is "one billion, one hundred twenty-one million, three hundred thirty-two thousand, one hundred forty-four".