1121320444 has 6 divisors (see below), whose sum is σ = 1962310784. Its totient is φ = 560660220.

The previous prime is 1121320427. The next prime is 1121320457. The reversal of 1121320444 is 4440231211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140165052 + ... + 140165059.

Almost surely, 2^1121320444 is an apocalyptic number.

It is an amenable number.

1121320444 is a deficient number, since it is larger than the sum of its proper divisors (840990340).

1121320444 is a wasteful number, since it uses less digits than its factorization.

1121320444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280330115 (or 280330113 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1121320444 is about 33486.1231557193. The cubic root of 1121320444 is about 1038.9067789985.

Adding to 1121320444 its reverse (4440231211), we get a palindrome (5561551655).

The spelling of 1121320444 in words is "one billion, one hundred twenty-one million, three hundred twenty thousand, four hundred forty-four".